What Causes Black Spots On Top Of Penis And Groin?

Sir i hav a skin problem in the joint of legs and a few area of upper part of penis, sir i previously used fluconazole 150 at least mnths,but it did nt cured totaly because after one year it again appears and i used terbinfine hcl 250 tab for 21 days,it seems almost cured but stil black spots are there,and seems that it may hav a chance to appear once again,in the meantime i had a intercourse with my girl friend,i saw there were lots of red red infection in the same area like me upper part of vagina and joint area of legs???? Sir please help us