Vaginal infection 3 months PP

About a month after pp, i had quite a bad infection down there. Was given tabs from the doctors and then no more infection. Decided to do the deed with husband after getting the yes and i got an infection again! Oh sex was very painful and uncomfortable. I actually waited for my infection to fully heal before having sex again. Did the deed few nights ago and bam, infection again today.

Is this even normal?! We made sure we were very clean down there and husband had condom on. I’m tired of feeling irritable down there 😢