Dr. Hanif warmly Welcomes you! Thanks for consulting at my virtual clinic. I have carefully worked through your case, and I can realize your health worries. Being your physician, I assure you not to worry as I will take care all of your medical concerns.   Yes STD can be contracted from a girl who had active disease because viral infection can be spread through patient secretions including saliva. But this burning isn t looking due to the STD entirely. It may be due to the excessive washing with undiluted savlon. Anyway, go ahead and get yourself checked by your physician. He will do a complete physical examination and will treat accordingly if needed. For skin itching apply Eucerin Eczema relief ointment available over the counter. If itch is too much, take loratadine tablet too. Hope I answered all of your health concerns . If you have further questions in future, feel free to contact me anytime. In the start of your question write my name, and I will get back to you in no time. If satisfied, please click you found it helpful. Have a wonderful time ahead.   Best Regards! DR. MUHAMMAD M. HANIF USA