Cold sores are a common and often frustrating skin issue. While they may look like harmless blisters, cold sores are actually caused by the herpes simplex virus (HSV).

What Causes Cold Sores?

Cold sores are caused by the herpes simplex virus (HSV), which comes in two types: HSV-1 and HSV-2.

HSV-1 is the primary cause of cold sores, usually appearing around the mouth.

HSV-2 generally causes genital herpes but can also lead to cold sores.

While the appearance of cold sores caused by both HSV-1 and HSV-2 can look similar, their locations tend to differ. However, it is possible for HSV-1 to cause sores on the genitals and for HSV-2 to appear on the mouth.

How Do Cold Sores Spread?

Cold sores are highly contagious and can spread easily. The virus can be passed on through:

• Kissing or skin contact
• Sharing food, drinks, or cosmetics (such as lip balm)
• Oral sex, which can spread both cold sores and genital herpes

Even when a cold sore isn’t visible, the virus can still be spread through close contact. This makes prevention and management key to reducing outbreaks and the risk of infecting others.

Once someone contracts HSV, it stays in the body for life. While the virus remains dormant most of the time, it can reactivate and cause new sores, especially during periods of:

• Stress
• Illness
• A weakened immune system

Unfortunately, there’s no cure for the herpes virus, but the symptoms can be managed.

Symptoms of Cold Sores

Cold sores don’t just appear out of nowhere. Before the sore is visible, you may notice a tingling or burning sensation around the lips or face, which can occur several days before the sore forms. This is the best time to begin treatment to shorten the outbreak.

When a cold sore does appear, it often looks like a red, raised blister filled with fluid. The blister can be painful to touch, and there may be more than one. Cold sores usually last around two weeks and are contagious until they crust over and heal.

The Five Stages of a Cold Sore

Cold sores go through distinct stages as they develop and heal:

• Tingling and itching: You may feel these symptoms about 24 hours before the blister appears.
• Blisters: Small, fluid-filled blisters form, typically around the mouth.
• Bursting: The blisters burst and form painful sores.
• Scabbing: The sores dry out, scab over, and may itch or crack.
• Healing: The scab falls off, and the cold sore heals.

Risk Factors for Cold Sores

Certain factors can trigger the reactivation of HSV, leading to cold sores. These include:

• Infection, fever, or cold
• Sun exposure
• Stress
• Menstruation
• Dental work or injury
• Weakened immune system due to conditions like HIV/AIDS, eczema, or chemotherapy

Managing and Treating Cold Sores

There’s no cure for cold sores, but several treatments can ease the symptoms and help manage outbreaks.

Topical Ointments and Creams

Over-the-counter antiviral creams like docosanol (Abreva) or prescription ointments like penciclovir (Denavir) can help reduce the duration of an outbreak, especially if applied at the first sign of a cold sore.

Oral Medications

Prescription antiviral medications like acyclovir, valacyclovir, and famciclovir can also help, particularly for people who have frequent or severe outbreaks. Your doctor may recommend taking these medications regularly to prevent future outbreaks.

Home Remedies

There are also some home remedies that may provide relief, such as:

• Applying ice or a cold washcloth to the sore
• Using aloe vera gel or lemon balm lip balms
• Applying petroleum jelly to ease discomfort

Canker Sores vs. Cold Sores: What's the Difference?

While cold sores and canker sores may seem similar, they are quite different:

Cold sores are caused by the herpes virus, appear around the mouth, and are contagious.

Canker sores are not contagious and appear as ulcers inside the mouth or throat.

Preventing the Spread of Cold Sores

To avoid spreading cold sores:

• Wash your hands frequently
• Avoid close contact with others during an outbreak
• Don’t share food, drinks, or personal items like lip balm

Cold sores can be a persistent issue, but with proper care and management, you can reduce the frequency of outbreaks and prevent spreading the virus to others.

Ladies, does it ever happen to you that you are not on your period, not PMSing, and still feel moody and upset? Well, as it turns out, experts say that there could be a very simple reason for this. According to researchers at the University of Connecticut, even mild dehydration could be responsible for mood changes in women. Not only this, even 1.36 per cent dehydration can affect your mood, ability to think and energy levels. The Daily Mail notes that a loss of 1.5 per cent of normal water volume levels in the body can be classified as mild dehydration, and its adverse effects can linger for some time.

Read more: The Health Problems Women Normalise, But Gynaecologists Do Not

How does dehydration affect women?

In women, the adverse effects of dehydration can be serious. Experts say that the effects are more intense in women, and they came to this conclusion after analysing the results of tests, which revealed that it does not matter if a person walks for 40 minutes on a treadmill or is in a state of rest — if an individual is even slightly thirsty, the adverse effects will be the same.

Research shows that even 1.36 per cent dehydration is enough to cause the following problems:

1. 8 per cent rise in hostility and anger
2. 12 per cent dip in vigour
3. 17 per cent increase in fatigue
4. 45 per cent dip in concentration
5. 19 per cent worsening of mood
6. 58 per cent dip in understanding simple tasks
7. Headaches worsening two fold

Is thirst the same as dehydration?

Lead researcher of the study, Lawrence Armstrong, noted that a sensation of thirst does not appear until a person is one or two per cent dehydrated. By then, it starts to set in and act up, adversely impacting how the mind and body perform. Dehydration can affect everyone, which is why it is just as important for people in desk jobs to stay hydrated as it is for marathon runners.

Read more: Three Health Checks Every Woman Should Do Each Month, According To Experts

In this research, experts put participants through a series of tests evaluating their concentration, vigilance, reaction time, reasoning, memory and learning. The results were then compared with those of people who were not dehydrated. In younger women, mild dehydration resulted in fatigue, headaches and concentration difficulties. Women also found basic tasks more difficult to execute than usual. On the other hand, young men noted some difficulty in performing mental tasks — they experienced anxiety, fatigue and tension in the process. Mood changes were more prominent in women than in men.

The oral microbiome is the community of bacteria, fungi, and other microorganisms that naturally live in the mouth — on the teeth, gums, tongue, and cheeks. More than

700 species are known to exist, most of which are harmless and many beneficial.

However, problems arise when harmful bacteria outnumber protective ones, leading to gum inflammation or periodontal disease. During pregnancy, hormonal changes increase blood flow to the gums and alter immune responses. As a result, many women notice bleeding, swelling, or sensitivity in the gums — a condition known as pregnancy gingivitis.

This is common and reflects physiological changes rather than poor hygiene.

The Mouth's Connection To The Placenta

Pregnancy is a systemic state in which the immune system, circulation, and inflammation are closely interconnected. Chronic gum inflammation can release inflammatory mediators into the bloodstream.

In research settings, certain oral bacteria have also been detected in placental tissues from complicated pregnancies. This suggests a biological link between oral health and

placental function, although the exact pathways are still being studied.

Importantly, this relationship reflects association rather than direct causation.

Why Does Placental Health Matter?

The placenta is an active organ that regulates oxygen and nutrient transfer, hormone production, and immune protection for the developing baby.

Healthy placental development supports:

• Efficient oxygen and nutrient delivery
• Balanced hormone production
• Protection against infections
• Steady fetal growth

What Changes In Oral Health Are Normal During Pregnancy?

Up to 60–75 percent of pregnant women experience some degree of gum inflammation. Common changes include:

• Bleeding while brushing
• Swollen or tender gums
• Increased plaque buildup
• Persistent bad breath

Can Oral Health Really Affect Pregnancy Outcomes?

Research from India and globally shows associations between periodontal disease and higher risks of preterm birth, low birth weight, and preeclampsia. Meta-analyses

suggest a modest increase in risk (around 1.5–2 times).

However, pregnancy complications are multifactorial. Oral disease alone does not directly cause these outcomes. Genetics, nutrition, metabolic health, and placental

biology all play important roles.

Treating gum disease improves oral health and reduces inflammation, though studies show mixed evidence on whether it directly lowers preterm birth risk. The goal is

prevention, awareness, and overall maternal health.

How Do You Support Healthy Oral Microbiome During Pregnancy?

Daily oral care:

• Brush twice daily with gentle pressure
• Use a soft-bristled toothbrush
• Clean between teeth once daily
• Rinse your mouth after vomiting to protect enamel

• Calcium-rich foods like curd and ragi support dental health
• Vitamin C from amla, guava, and citrus helps gum healing
• Fibre-rich foods support saliva flow and microbial balance
• Hydration and lifestyle
• Drink adequate water
• Limit frequent sugary snacks
• Avoid tobacco in all forms

Pregnancy already carries emotional and physical changes, and dental symptoms can add anxiety. Support from partners and family members helps reduce mental load.

Stress can influence immunity and inflammation. Adequate rest, gentle activity such as walking or prenatal yoga, and open communication with healthcare providers

support both oral and overall health.

Warning Signs: When Should You Contact A Doctor Or Dentist?

Seek professional advice if you notice:

• Severe tooth pain or swelling
• Pus, fever, or difficulty chewing
• Bad breath that does not improve
• Persistent gum bleeding for two weeks

Pregnancy is a time when different systems of the body work in close coordination. Oral health, immune balance, and placental function are part of the same continuum.

Gentle attention to gum health is not about perfection. It is about creating supportive conditions for a healthy pregnancy and a healthy baby.

Hormonal imbalance plays an important role in the development of endometrial cancer, which is one of the most common types of gynaecological cancers worldwide. The endometrium is the inner lining of the uterus and is highly sensitive to hormonal changes, particularly the balance between oestrogen and progesterone. When the body is exposed to excess oestrogen without adequate progesterone, the endometrial lining grows excessively. Over time, this prolonged stimulation leads to abnormal cell changes and increases the risk of developing endometrial cancer or uterine cancer.

How does lifestyle affect hormones?

Dr Fahad Afzal, Consultant Oncologist at Saifee Hospital, while talking about the impact of lifestyle on hormones, said, “Several lifestyle and health conditions can contribute to this hormonal imbalance. Obesity is one of the most significant risk factors because excess body fat increases oestrogen production. Women who are obese therefore have higher levels of oestrogen, which stimulates the uterine lining. Moreover, conditions like PCOS, diabetes, and metabolic syndrome are also associated with hormonal disturbances that elevate the risk.”

A sedentary lifestyle and an unhealthy diet further worsen hormonal imbalance and inflammation in the body. Additionally, irregular menstrual cycles, early onset of menstruation, late menopause, and not having children increase lifetime oestrogen exposure.

Read more: Oncologists Warns Of The Cancer Rising Among Women in India

How to treat hormonal imbalances?

The encouraging aspect is that several of these risk factors are modifiable. Maintaining a healthy body weight, engaging in regular physical activity, and following a balanced diet help regulate these hormones and reduce the risks. Managing conditions like PCOS and diabetes with guidance from a trained medical professional is also important.

Equally important is awareness of symptoms. Any abnormal uterine bleeding or vaginal bleeding, especially after menopause, should never be ignored and requires prompt medical evaluation. Early detection of endometrial cancer often leads to good outcomes. Understanding the relationship between lifestyle, hormone balance, and cancer risk can help women take proactive steps towards prevention and timely diagnosis.

What is the impact of hormones on endometrial cancer?

Dr Smit Sheth, cancer physician at M|O|C Mulund, said, “Hormones play a crucial role in a woman’s reproductive health, but when they fall out of balance, they can also increase the risk of certain cancers, including endometrial cancer. Endometrial cancer, which affects the lining of the uterus, is one of the most common gynaecological cancers in India. According to World Health Organization data, its incidence is steadily rising, particularly in urban populations where lifestyle changes are more pronounced.”

At the core of this risk lies an imbalance between two key hormones: oestrogen and progesterone. When oestrogen levels remain high without adequate progesterone to counteract it, the uterine lining can grow excessively, increasing the chance of abnormal cell changes over time. Modern lifestyle factors are significantly contributing to this imbalance. Rising obesity rates, sedentary habits, delayed pregnancies, and conditions like polycystic ovary syndrome (PCOS) are increasingly common among Indian women.

Fat tissue itself produces oestrogen, meaning overweight women often have higher circulating levels of this hormone. Studies suggest that obese women may have up to 2–4 times higher risk of developing endometrial cancer compared to those with a healthy weight. Additionally, irregular menstrual cycles, early onset of menstruation, and late menopause further extend lifetime oestrogen exposure, compounding the risk.

“Lifestyle today is a major driver of hormonal imbalance,” explains Dr Smit Sheth, cancer physician at M|O|C Mulund. “Obesity, lack of physical activity, and unmanaged metabolic conditions can silently increase oestrogen levels. Over time, this creates a favourable environment for endometrial cancer to develop, especially if symptoms like abnormal bleeding are ignored.”

Read more: Think Your Hormones Are Out Of Balance? Doctors Reveal The Warning Signs You Shouldn’t Ignore

Can endometrial cancer be detected in time?

The good news is that endometrial cancer is often detectable early. Warning signs such as postmenopausal bleeding, irregular periods, or unusual discharge should never be overlooked. Simple lifestyle changes, maintaining a healthy weight, regular exercise, a balanced diet, and timely medical check-ups can significantly reduce risk. In a country like India, where awareness remains limited, early education and proactive health behaviour are key to prevention.