who got skin rashes during pregnancy..i'm 24 weeks and those thing are at my legs

Sama.. Satu badan.. Macam scabies tp letak ubat scaboma pun tak okay lg. Taktau nak pakai ubat ape. Klinik pun dh 3 kali g check. Doktor bg calamine dgn ubat tahan gatal. Tp masih tak berkesan😭