Ok my girlfriend has had 2 yeast infections in 2 months ... I have Cystic Fibrosis and take medications ... We have sex atleast 3 times a week sometimes more -- the 2 times she got the infection they were pretty intense times --- the first was like 4 times in 2 hours and then the period of sex last about an hour or so --- she says this is the first time anyone has done this too her -- now i know i am clean (i have been tested) and this has never happened to her -- do u think i could transfer something that she could get because i possibly have a yeast deficiency cause of the antibiotics or do u think her vagina is just not used to intense sex?? i mean when we have sex other times everything is ok... Any ideas?? Thanks Would acidophilus help a male like me if i lack yeast for whatever reason because of my antibiotics??