hi Doc, i noticed some tingly itch in my labia minora 2 days ago.

After my boy friend and i were fooling, we didnt have sex but he came on my pantings, after 2 days i noticed the itching

Yesterday, the itch started to manifest with red rashes and i noticed a little cheesy whitish discharge.

Is it alright for me to use penicillin? because i have started taking antibiotics. Please help me on what to do. thank you.