sick piggies

I dont know what to do! My sweet baby has these spots on him and theyre getting worse! I cant afford a vet, I need some home remedy help, please.

hello all, as you know I've bought two piggies from petsmart already. I took the first one, pepé, back a few days after and he died within 48 hours. my second piggie, bootsy, got sick a few days after and was taken back to see the vet. bootsy died this morning after nearly a week in their care...