Another Ear infection

Well sort of anyway...it's the same ear infection he's had, but the last antibiotics weren't working after 8 days of use and all he got from it was a bad diaper rash. He woke up on Tuesday and grabbed his ear and said "owie". I really need to start listening to him because he has told me the last 2 times about his ears. I didn't think too much of it though because he was in such a good mood and had no other symptoms. Even his teachers said he was happy all day, he just woke up from a nap with a 102 fever though. Anyways, he is on the Z pack and doesn't have a fever, so we are hoping this one works. This is his 3rd infection in 1 month!