Hello from JustAnswer.
Yes, you can attach a picture of the rash using the icon on the toolbar that looks like a paper clip.
The system says that you have requested a phone call. I would be glad to do so, but it would be better to be able to review a picture of the rash before discussing it by phone.
This looks like urticaria, also called hives.
Urticaria can occur as an acute or a chronic problem. If it is limited tot he skin, then it would be fine to try to manage this at home. Oral antihistamines would be the usual first-line treatment, and any of the over the counter antihistamines would be fine. Steroids also can be used, but the only over the counter option is a mild steroid cream, hydrocortisone. It would be fine to try the over the counter hydrocortisone, but it is not as practical when the rash is widespread, and oral steroids is frequently more effective.
Some people can have systemic symptoms along with the skin manifestations, including swelling of the lips or mouth or spasm of the airways and shortness of breath. If there are any of these symptoms, then it would be better to see your doctor quickly for more aggressive treatment.
If Ic an provide any additional information, please let me know.