I'm not sure OP understands the gravity of the wounds either.
This is an insane infection and wound, apparent to most people who have owned a snake or two for awhile. It would be like if your dog's entire belly skin was flayed off and oozing without seeing a vet, and anyone would know that's animal abuse.
Frankly, your snake is going to die slowly and in pain if you don't see a vet, OP... A vet fund should always be available when you take responsibility of an animal. Even though every caresheet out there that should've been researched before obtaining the snake does say to get a thermostat.