Hello Dr Yes I Have A Question. My 4 Yr

Hello Dr yes I have a question. My 4 yr old son testicles been getting swollen since birth! my question is how can I bring down the swelling & ease the pain? His Dr said he should've grown out it by now. He also said that Dr's really don't like doing surgery on children & it would be hard to find a Dr to perform a surgery on him cause he's so young. What can I do to help my baby?