Hello. Thanks for writing to us at healthcaremagic I will keep a possibility of Non-gonococcal urethritis (NGU) as the cause of persisting discharge. While gonorrhea usually causes purulent discharge, NGU is mostly associated transparent, sticky discharge. The causative organisms for NGU commonly being chlamydia, mycoplasma and are usually acquired the same way as gonorrhea i.e unprotected sexual contact with an infected partner. Treatment of NGU is usually with either single dose Azithromycin Or Doxycycline, twice daily for a week I would suggest that you seek another appointment with your dermatologist and bring this concern of yours, to his notice. Regards