Girls, hi ?, Could you please tell me, a couple of days ago I had a ra…

Girls, hi ?, Could you please tell me, a couple of days ago I had a rash, it was a little bit and now it's all over my neck, I excluded all allergens, I only give Fenistil, it's just getting worse, we used NAN before, could it be on that? Or something like that? It's such a sweat rash, or what? Before if I got a little bit, I took Fenistil and everything was fine, but now it doesn't go away at all, the hospital is closed, the doctor said Fenistil, but it just really bothers me because it worries my little girl, what should I take, how can I help the child?