Itch More Condition_symptoms How Long Does A Dog Itch After He Is Biten By A Flea...see More Explanation Below:?

How long does a dog itch after he is biten by a flea...see more explanation below:? - itch more condition_symptoms

For dogs with allergies to flea saliva between them a reaction. Does anybody know how long (in one bite) that this reaction? In other words, how long were delivered to Sting, very smart?