Hello Doctor, Last May from my blood test came to know that I have syphilis. Doctor prescribed me 6 shots of penicillin 1.2 million. I got all the 6 shots but still my vdrl report is positive, though the dilution came down 1: 32 to 1: 16. Doctor prescribed me another 6 shots, but 2 at a time. (Penicillin 1.2 m two shots each buttock for 3 week). I already got 1st two shots. My question is how long it will take to get my vdrl report negative again? As my dilution came down from the 1st report (from 1: 32 to 1: 16), am I curing very slow? Am I getting proper treatment?