Any ladies/SMART THINK OUT OF THE BOX DOCTORS out there could help me with a reoccurring yeast problem ?

I have been in a long term relationship for a while now and with my partner I keep getting reoccurring yeast. We’ve been to PCP/OBGYN’s countless times, both been taken antibiotics. Most recently I’ve been taking 2 different antibiotics twice a day for 3 weeks(finished). Felt really good, no problems. (My partner is still taking his )He went down on me and immediately I wasn’t feeling good(vag area) he only touched my clit with his tongue. Tried the anal area and his spit burned. What is happening? We haven’t had this issue with previous partners but we are struggling together. I’m tired of getting sick. Does anyone have any suggestions? I’m desperate!