VisualDX. Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck!
Anti-itch cream. Sunburn is caused by sun damage to the skin. The itching is part of the inflammatory response to that damage. You can use aloe-containing products, much as you would for a burn. Also, 1% Hydrocortisone cream may be of benefit. The main thing, though, is to avoid getting burned again in the future. Sunburns can be associated with the development of skin cancer.