scab on chin

Hi everyone, this is my boar, Bear :) I’ve noticed that he has a scab on the corner of his mouth, I will insert a picture (he wouldn’t let me take a decent one!) The bits of blood under his chin are just that, dried blood, not other scabs. He is eating fine and when I touch near the scab he...

I'm quite new to this platform but my guinea pig has some sort of scab on their chin i cant afford a vet so is there something i can do to kinda help him? ((unrelated question how do i upload a photo🤔))