I had an allergy test in 3rd grade and just been on allergy meds now and none have been working for the past 3 years. I am now 23 and going in to get testing again and hopefully shots as well. I was wondering how soon after doing the scratch test they give you your first shot. I can’t find any details on it. I just cant wait to spend an hour in a room with a dog and not look like I am high and sneezing.