Why Psoriasis Gets Worse in Winter: 7 Triggers and How Ayurveda Calms Flares (2026)

By Dr. Amita Abrol, BAMS (Gold Medalist), MS · Ayurvedic Physician, Amritsar · Last updated: 12 October 2026

Why Does Psoriasis Get Worse in Winter?

Psoriasis gets worse in winter for most people because the skin loses moisture, gets less sunlight and faces more triggers such as infections and stress. A large US study found that moderate-to-severe psoriasis was most common in winter, while clear skin was most common in summer.

That study looked at 5,468 people with psoriasis over three years. In winter, about 4 in 10 clinic visits (40.5%) showed moderate-to-severe psoriasis. In summer, clear or almost-clear skin was at its highest.

Psoriasis is common. The World Health Organization says it affects about 100 million people worldwide. In India, hospital studies put it at 0.44% to 2.8% of adults. In North India, where winters are cold, foggy and dry, we see a clear rise in patients from November to February.

7 Winter Triggers That Cause Psoriasis Flare-Ups

The seven main winter triggers are cold dry air, less sunlight, indoor heaters and hot baths, throat infections, heavy winter food, festival-season stress and alcohol, and rough woollen clothes. Most of them can be reduced with small daily changes.

1. Cold, Dry Air

Cold air holds very little moisture. The outer layer of skin dries, cracks and itches, and scratching makes plaques thicker.

2. Less Sunlight and Lower Vitamin D

Sunlight's UV rays slow down the fast skin-cell growth in psoriasis. That is why many people clear up in summer. A 2023 review of 23 studies also found that people with psoriasis had lower vitamin D levels than people without it. But vitamin D tablets alone did not improve psoriasis in trials, so take them only if a test shows you need them.

3. Room Heaters and Hot Baths

Heaters, blowers and long hot showers strip the skin's natural oils. A very hot bath feels good on itchy skin for a few minutes, then leaves it drier than before.

4. Throat Infections

Colds, flu and sore throats peak in winter. A strep throat infection can set off guttate psoriasis (small drop-like spots) about 2 to 3 weeks later, or a flare of existing plaques.

5. Heavy Winter Food and Less Exercise

Winter brings pinni, gajar halwa, fried snacks and late dinners, and people walk less. Weight gain makes psoriasis harder to control. The US National Psoriasis Foundation strongly recommends weight loss for overweight people with psoriasis. Read our guide to digestive fire to see why heavy food matters in Ayurveda.

6. Festival Season: Stress, Late Nights and Alcohol

Diwali, weddings and year-end work bring late nights, travel, sweets and alcohol. Stress is one of the most common triggers people report, and drinking is linked to more severe psoriasis.

7. Rough Woollens and Scratching

Wool rubbing on dry skin makes you scratch. In about 1 in 4 people with psoriasis, injured skin grows a new plaque. Doctors call this the Koebner effect.

How Ayurveda Explains Winter Flares

Ayurveda calls psoriasis Ek Kushta, a skin disease driven mainly by Vata and Kapha. Winter's cold and dryness raise Vata, causing dryness and cracking, while heavy winter food and less activity build Kapha and toxins (Ama), causing thick, scaly patches.

The Charaka Samhita describes Ek Kushta with three signs: no sweating in the patch, large areas of skin involved, and scales that look like fish scales. This matches the silvery plaques of plaque psoriasis closely.

Ayurveda also divides winter into two seasons, Hemanta (early winter) and Shishira (late winter). In both, digestion is strong but the air is cold and dry. People eat more and heavier food, and if digestion can't keep up, toxins build. So winter care in Ayurveda works on both sides: keep the skin oiled and warm (calm Vata) and keep food light and digestion clean (control Kapha and Ama).

An Ayurvedic Winter Skin Routine for Psoriasis

The best winter routine is simple: oil the skin before a lukewarm bath, moisturise within three minutes of drying, get morning sun, wear cotton next to the skin, and eat a light, early dinner. Done every day, these steps matter more than any single cream.

Step 1: Oil Before You Bathe (Abhyanga)

Gently apply lukewarm oil to the body 15–20 minutes before bathing. This is Abhyanga, the Ayurvedic oil massage. Coconut oil suits red, itchy skin. Your doctor may prescribe a medicated oil for thick plaques. Do a patch test first, and don't oil broken, oozing or pus-filled skin.

Step 2: Bathe in Lukewarm Water

Keep baths under 10 minutes in lukewarm water. Use a mild, soap-free cleanser. Pat dry, don't rub.

Step 3: Lock in Moisture

Apply a thick, fragrance-free moisturiser or your prescribed oil within three minutes of bathing, while the skin is still slightly damp. Repeat at night.

Step 4: Sun, Food and Sleep

• Morning sun: 15–20 minutes on affected skin before 10 am. Never let the skin burn.
• Light dinner by 7:30 pm: moong dal khichdi, vegetable soup or roti with lauki or tinda.
• Warm water through the day instead of cold drinks.
• Sleep by 10:30 pm. For stress-related flares, therapies such as Shirodhara can help.

Winter Psoriasis: Myths vs Facts

The most common winter myth is that a hot bath helps psoriasis. It soothes for a few minutes, then dries the skin further. Here are the myths we hear most often in clinic.

When Should You See a Doctor?

See a doctor quickly if your whole body turns red, pus-filled spots appear, you get a fever with a flare, or your joints become painful and swollen. These need prompt medical care, not home remedies.

What This Looks Like in Practice

A composite example, typical of what we see. Details changed for privacy.

A 41-year-old shopkeeper from Amritsar had plaque psoriasis on his elbows, knees and scalp. Every December it doubled in size. He took long hot baths, sat beside a heater in the shop and ate a heavy dinner at 10 pm.

From October, he oiled his skin before a short lukewarm bath, moisturised twice daily, wore cotton under his sweaters, sat in the morning sun and moved dinner to 7:30 pm. He also took internal Ayurvedic medicines prescribed for him. That winter, his plaques stayed about the size they were in autumn, and the itching at night settled. Results vary, but starting before the cold makes a real difference.

More in This Psoriasis Series

About the Author

Get a Winter Psoriasis Plan Before the Cold Peaks

References

1. Pascoe VL, Kimball AB. Seasonal variation of acne and psoriasis: a 3-year study using the Physician Global Assessment severity scale — Journal of the American Academy of Dermatology, 2015. Summary.
2. World Health Organization. Global Report on Psoriasis, 2016.
3. Dogra S, Mahajan R. Psoriasis: Epidemiology, clinical features, co-morbidities, and clinical scoring — Indian Dermatology Online Journal, 2016.
4. Psoriasis and Vitamin D: A Systematic Review and Meta-Analysis — Nutrients, 2023.
5. Ford AR et al. Dietary Recommendations for Adults With Psoriasis or Psoriatic Arthritis From the Medical Board of the National Psoriasis Foundation — JAMA Dermatology, 2018.
6. Psoriasis Association (UK). Psoriasis triggers.
7. Charaka Samhita, Chikitsa Sthana, Chapter 7 (Kushta Chikitsa).

Images: “A foggy winter morning” by Abdul Momin, CC BY-SA 4.0; “Electric Ceramic Space Heater” by Tony Webster, CC BY 2.0; “Woman applying cream on her arm in a bathroom” by Shixart1985, CC BY 2.0; “Psoriasis in elbow” by Alborz Fallah, CC BY-SA 3.0. Wikimedia Commons images cropped.