What causes red patches on the face after being exposed to wind, and what should be done about it?

Redness appearing in patches on the face after exposure to wind may be caused by dry and sensitive skin, cold wind-induced blood vessel constriction, contact dermatitis, seborrheic dermatitis, or rosacea. Depending on the specific situation, improvements can be achieved through daily skincare routines, medical treatments, and other approaches. Detailed analysis is as follows:

1. Dry and Sensitive Skin

When the skin barrier is weakened and the skin becomes dehydrated and dry, cold wind can easily damage the barrier and cause redness. Cleanse the face with lukewarm water promptly, apply a moisturizer containing ceramides to lock in moisture, and wear a mask outdoors to reduce exposure to wind.

2. Cold Wind-Induced Blood Vessel Constriction

Exposure to cold wind at low temperatures causes facial blood vessels to first constrict and then dilate, leading to localized congestion and redness. After returning to a warm environment, gently apply a warm towel to the face to help stabilize blood vessel function and avoid sudden changes between extreme cold and heat.

3. Contact Dermatitis

Wind may carry allergens such as dust and pollen, which upon contact with the skin trigger allergic reactions, resulting in redness and itching. Under medical guidance, oral antihistamines such as cetirizine hydrochloride tablets, loratadine syrup, or ebastine tablets may be taken, along with topical application of calamine lotion.

4. Seborrheic Dermatitis

Excessive sebum production combined with cold wind stimulation can worsen inflammation, manifesting as redness accompanied by light red plaques. As prescribed by a doctor, topical treatments such as tacrolimus ointment or pimecrolimus cream may be used, along with oral vitamin B2 supplements. Maintain facial cleanliness and control oil production.

5. Rosacea

Caused by a combination of genetic and environmental factors, cold wind triggers abnormal dilation and constriction of facial blood vessels, leading to redness. Under medical supervision, medications such as doxycycline capsules or minocycline tablets may be taken orally, along with topical metronidazole gel. Avoid spicy and irritating foods.

In daily life, strengthen facial moisturization and use gentle skincare products; limit outdoor activities during windy weather and ensure proper wind and sun protection when going outside; maintain a light diet rich in fruits and vegetables to boost vitamin intake; if redness persists or worsens, seek timely medical evaluation for accurate diagnosis and treatment.