English is my moms second language and she often misunderstands things. I wouldn't be surprised if it was an anti viral and not an antibiotic. She said the doc said there was fluid in the welts, does that indicate a secondary infection?

Is the doc wrong if it is indeed an anti biotic that was prescribed? Should she see another doc? I don't have much trust in walk in clinic docs...maybe she should see another? What do u think?