Blisters breakout

I am currently at 28weeks pregnant. I noticed i have 2 kindoff mozzie bite on my right shoulder a week ago. And it is itchy. And then later when i took shower i looked in the mirror and i saw i had like a cluster of 20 small blister rashes like that near the mozzie bite. Initially i thought i was like whitehead and attempted to pop it and then i realised it was blister. It has been a week alr and the bumbs are still there kindoff itchy and pain there. What should i do? I been applying calamine lotion/tradition malay ointment. Hoping it would dry off. Should i see doctor or should i observe another week? I cannot apply any antifungal cream without prescription right?