Hi Dear , Welcome to HCM, Understanding your concern . As per your query you have symptoms of recurring dry, white patches on face. Well it could be because of many reasons like during the summer months you experience dry, cold wind, which are detrimental for you skin and may result in dry patches , harsh chemicals, stress, water, and detergents . Psoriasis is another skin condition that causes flaky patches or scales that affect the skin. Skin with dry patches is very susceptible to sun and will have more chances to get damage by sun then normal skin. Need not to worry. I would suggest you to apply aloe vera gel on your skin twice a day and apply broad spectrum sunscreen while under exposure of sun and use only mild soap to wash the face . If condition doesn t get better then consult dermatologist for proper examination. Doctor may prescribe steroid ointment or anti histamine drug . Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari