sore spot?

[pooky]

around the front of one of my gerbils snout, there is small bald patch, which is a little (but not majorly) red. it seems as though it might be a little sore, because if i touch near it, he squerms more then usual. ive had this kind of thing once before (but it was farther back, on the gerbils cheek), but i was told to leave it alone, and keep an eye on it, and it disapeared after a few days. i dont know if this one might be more serious then the one before, because it is nearer the snout, but he is still active, and dosent seem to have a problem eating. any thoughts?

thanks,
pooky