Last Friday I had intercourse with my partner and everything was quite normal till Saturday evening then at same night I experienced burning sensation while peeing I thought I may have got UTI I took medicine , I experienced zero comfort and then suddenly on this Wednesday only I saw a blister or small ulcer like  structures were there near my labia minora and just on the side of my uthrethral opening and they were soo sensitive to touch or even wash .I was feeling like someone was scratching down there from a bunch of needles all together . I am so scared to even pee as it causes so much pain to me , I am not able to sit properly also because they are so sensitive . What to doo now ? I searched, and they said antiviral drugs will help, but which one precisely to be taken? I just can't able to bear the pain . I even got a high fever , 102-103 F, but now fever is gone, but this pain is getting worse day by day .