My mother has had a very bad rash with blisters for 4 years now, on her chest, arms, and neck. She has gone to the doctors multiple times. This rash is VERY painful, bringing her to tears almost every day. She can barely stand to take a shower.
Please, even if nobody can give a diagnosis, please tell me how to lessen the pain.
Pictures: https://imgur.com/a/nlG8uAg