Normally it would be your regular doctor who would help you with this - looking at the infection and other issues. If you are struggling with it and are able to though I would also try talking to your therapist about it. They might be able to help you with some techniques to make seeing your doctor a bit easier.

I definitely know how it feels to be nervous with people down there but it is possible to manage Please consider getting things checked, especially if you have an infection because that can cause long-term damage.