I Had A Yeast Infection And Then I Noticed My

I had a yeast infection and then i noticed my left vagina lip get really swollen and started having painful spots that didnt look like blisters but were painful like a blister. I went to dr he said doesnt look like std and said a rash of some kind but is it possible to have non sti sores on genital area? He prescribed mupirocin ointment usp 2% and hydrocortison cream.