That's a really big wound to have to heal from, but your pup looks strong enough to do it. He's going to need a lot of love, good food, and soothing touch from you and your kid. If Mayson knew enough to alert you, I'm guessing that won't be a problem for him. I can be pretty squeamish, but for someone you love, you learn to deal with that sort of thing, and I'm sure you both will. Sending wishes for a quick, easy recovery.