Sorry to hear about all the pain TC!
Acupuncture could help too, we frequently see patients with numbness and/or neuropathic pain around surgical scars like c sections. The needles help repair the nerve pathways and the sensory map in the brain.
If I were you I would try Gaby's remedies first since you don't have to go anywhere and you could consider trying acupuncture if the pain doesn't go away.
You could also try acupressure either on yourself or maybe Ksee could do it for you. In case you want to try it these are the points I would try for starters:
LI-4 (good for any kind of pain and the stress of being with pain)
SP-6 (good for the lower abdomen) - find the bump on the inside of your ankle and look for a tender point a hand-width above it on the inside of your calf
LR-5 (helps with problems in the genitals) - this point is a bit higher than SP-6 and it is right along the edge of the tibia bone. There's usually a very tender notch in the bone and it may only be active on the same side as the testicle that was removed.
For all of these points find a tender spot and hold or gently massage them with firm pressure for a few breaths. Most people tend to overdo the pressure, if the points are quite tender you can just rest a finger on it gently for a few deep breaths. You will know its working if the pain becomes more bearable or less intense. You can do this as often as you need to.
If you decide to try it let me know how it goes and I can send you more points to try if you'd like.