Dashound aprox 9 mos. old wasp sting

Question
His name is Chance. He bit a large wasp and was stung in the mouth. He's pawing at his snout & licking alot. seems sad. won't even give kisses, which he LOVES to do! What do we watch for & what casn we do for him?

Answer
First give him a children's dose of antihistamine for tonight and tomorrow call the vet and let him know what happened....Wasp bites are nothing to take lightly,,,there is something with the immune system/allergy system that can cause future problems..
nancy