Buzby is almost 5 months old. he was fine at lunch but at 5 pm he has a large sore area under his chin and on his neck. the hair appears to have gone. I have looked on line and I think it is a hotspot. I've clean it up in a slightly warm cloth and antispectic. I am going to phone the vets at 7.am to take him in, He is sleeping. The vets hospital I phoned said they would leave it until morning. Is there anything else i should do. I feel so sad for him.