My 3 yr old has had two occasions that he broke out int hives for no apparent reason. The second occasion we took him to an allergist. She felt it was not v=necessary for the testing. At any rate, she did give us a scrip for an antihistamine and I am glad to have that. As for the snoring, my non-cah daughter used to snore terribly. It go to the point where here chest sort of caved in when seh breathed at night. She ended up having her tonsils and adenoids removed. What a difference! Not only can she breathe at night, but her temperment is so much better in the morning. No telling what kind of sleep patterns were being interupted by not beinga able to breathe. A trusted ENT might give some insight for you.