Thanks for writing in.
You can have herpes genitalis ,chancroid, granuloma inguinale
You should apply antibiotic like fusidic acid
on the genital.
Oral drugs like acyclovir
and valacyclovir are helpful for herpes.
Please visit a good dermatologist
or physician for proper examination and treatment with prescription drugs for STDs.
Hope this helps.
Dermatologist ,STD Specialist