I have been getting tiny blisters/prickly heat type things on my face, lips and arms everytime my skin has prolonged exposure to the sun. I am not sure what these are? But, it mostly happens when its extremely cold, windy and specially in sun. My exposed skin turns red, my lips are swollen with allergy and its itchy everywhere. I underwent an allergy test and the dermatologist told that my body has atypical response to common allergens like dust mites and pollen. I am still not satisfied , as i think its mainly due to sun. But what is it? I apply aquaphor to heal the redness and itching. Is there any way i can avoid this? Do i have sun allergy? I have tried sunscreens as well but nothing works?
Please help as i cant avoid sun completely,