Hi My Husbend Have Been Treated With Antibiotics For Over

hi my husbend have been treated with antibiotics for over than 8 months.
he told me that he has prostatitis. he made analyses for clamydia, gonorrhea and candida.
i don't know exactly the results of the analyses.he never told me, althoug i heve i seen yellow spots on his underwear every day for the last three days. i did not ask him and he never talks. i didn't make sex with him since last october. what could be these yellow spots? he took tavanic, prostality, augmentin, sow palmito and lastly averozolid