Hi, Thanks for writing to us. Your doctor might be right with his diagnosis of sunburn . Another possibility could be contact dermatitis due to exposure to any allergen or use of new cosmetics etc. if there has been an exposure to sun for prolonged time than we could think of all these symptoms bein sun induced To treat the same Use a good sunscreen, avoid sun as much as possible Do cold water compresses Apply a steroid cream like mometasone twice in a day Take oral antihistamine like cetirizine She might require a course of oral steroids for the same a doctor s prescription will be required. Hope that helped. Take care