He’s been scratching himself and licking quite a bit the past few days and today i noticed this on him and one other red spot on his eyebrow.

in the past he’s had flees and at the same time i’ve been feeding him coshida pouches but i wasn’t sure if the red marks were from the fleas or from the food. Last week or two weeks ago i bought some other food pouches from coshida (completely different from the ones previously, or so i thought…)

he doesn’t have fleas anymore thank god and i stopped giving him coshida for a while and he got better, until now.

If it is an allergic reaction, is there any way to find out what he’s allergic to specifically (like an ingredient in the food so i can avoid it in future wet foods)? Right now i’ve bought him a completely different brand but i’m unsure if the allergic reactions would continue with this too.