How can I help my hamster?

I own quite a bit of hamsters, we have never had a problem like this. We have had fights and small bites and injuries, but one of ours got bit, we think his testicle may have been punctured from the inside. There is a very, very large injury on his stomach, near his genitals. I've never seen a hamster get hurt so bad at the hands of another hamster. His "boys" are very swollen and black and though he has trouble moving, he has been eating and drinking normally. He seems very alert as well. My grandpa won't take him to the vet, he doesn't see the point in spending money on a ten dollar "rat" that will only live to 3 anyways. It's messed up, but there's not much I can do. Is there anything I can do to help him or make him more comfortable?
Asked Feb 22, 2015
Separating the hamsters is the only way to prevent trauma from a fight. More space and lower light intensity can prevent aggression in some cases (dwarf hamster species only).

Minor bites that merely graze the skin and are not bleeding severely can be washed to prevent infection. Add a tablespoon of salt to a liter of water and bring this to a boil, then allow it to cool completely while covered with cling wrap. With a cotton ball, dab the salt water on the bites, trying not to wet the surrounding skin. This may sting, so be prepared in case your hamster jumps, nips or wriggles. Check the skin daily for signs of redness or swelling.
Let me know how he gets on :)
Answered Feb 23, 2015

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