Why does my skin get dry as soon as the heating comes on?

Why the change feels so noticeable

Your skin's natural oils help maintain its barrier, the outer protection that holds moisture in. In colder weather, your body produces fewer of those oils, making dryness more likely. Heating makes the room more comfortable while making its air less useful to your skin, a rather selective definition of comfort. Flaking, tightness, roughness and itching are common signs; more severe dryness can crack and bleed. The link with heating is usually about moisture loss, not simply how warm the room feels.12

What to change when the heating comes on

1. 1Keep showers and baths to five to ten minutes, with comfortably warm rather than hot water. Hot water removes protective oils. Keep the bathroom door closed while bathing.
2. 2Wash gently. Use a gentle, fragrance free cleanser only where needed, and use enough to remove dirt and oil without creating a thick lather. Avoid vigorous scrubbing.
3. 3Pat dry with a towel, then apply moisturizer while your skin is still damp. Aim to apply it within three minutes of leaving the shower to help trap that moisture.
4. 4Use moisturizer when you wake up and before bed. Reapply after washing your hands and whenever your skin feels dry; one morning application does not replace the later ones.
5. 5Add moisture to the air. Put a portable humidifier in your bedroom and run it while you sleep. Aim for indoor humidity of 30% to 50%, and clean the humidifier regularly to prevent mold.

Which moisturizer should you use?

Choose a cream or ointment rather than a light lotion: richer textures hold more moisture in dry skin. Look for fragrance free products, with ingredients such as glycerin, hyaluronic acid, dimethicone or petrolatum. Glycerin attracts moisture to the skin. Choose a product designed for the area you are treating, whether face or body. An effective moisturizer need not be an expensive name brand, so the heating bill does not need a luxury skincare companion.2345

What can make the dryness worse?

Do not scrub away every flake: exfoliation can remove moisture and oils, leaving skin drier and itchier. Stop using fragranced products and cosmetic retinoids while your skin is dry. If a retinoid is prescribed, discuss the dryness with your prescriber before changing your treatment. Protect your hands with gloves outdoors and during wet tasks such as washing dishes. Loose cotton clothing reduces rubbing, and a cotton or silk layer can keep rough fabrics away from dry skin.13

What if you already have eczema?

Eczema causes patches of dry, itchy, inflamed skin, and winter moisture loss can trigger a flare. Heavier creams or petroleum jelly applied to damp skin, warm rather than hot baths, and a bedroom humidifier can help. Avoid overheating under heavy clothing, because sweat can also irritate eczema. If eczema remains uncontrolled despite these changes, contact your doctor; prescription treatment can help when skin care alone is not enough.6

How long should improvement take?

When home care is effective, improvement usually appears within two weeks. If dryness persists, keeps returning or worsens, see a dermatologist rather than assuming the heating explains everything. Medicines or an underlying skin condition can also cause dryness. Tell your dermatologist if moisturizer or other products cause burning, stinging or irritation. Cracks that become open sores need wound care to help prevent infection.234