This is a good question. It is important to make an appointment with your doctor
to discuss the recurrence of your symptoms and be re-examined. If you don't feel comfortable with what your doctor told you then it is perfectly fine to seek a second opinion from a different doctor. A primary care physician
or ob/gyn would be most appropriate to see you and evaluate your history and physical examination. In terms of what could be causing this, there are several potential causes, including what the first doctor mentioned which was that you may have contact dermatitis although usually this resolves once the offending agent has been removed. Another potential cause for this is a sexually transmitted disease. When you see your medical care provider, it is important to be forthright about your sexual history and whether you are using condoms for protection. If not, they will likely want to check some tests on you to see if you have an STD
. If that is the case, they may be able to give you medications to treat the STD and will also give you counseling about appropriate birth control methods and using condoms to avoid STDs and pregnancy. Either way, you should be evaluated by a medical professional.