You are correct that topical testosterone cream can increase the size of the clitoris as well as affect the labia causing scrotalization (the start to look like scrotum). The problem is, in addition to the increase in size, there is often increase in sensitivity which can be even more irritating and painful than what you are experiencing. Furthermore, every woman's anatomy is different and before you sell yourself short, you should definately be evaluated by an expert in the field to determine normal anatomy as well as nerve function/sensation. You are also correct that there can be side effects related to testosterone use including hair growth, oily skin, coarsening of the voice, hair loss etc. I would be happy to speak to you about all of this in greater detail to help work through your symptoms, the best treatments available, as well as the risks.
Jennifer Berman, MD
drjenrberman@yahoo.com