Rednose Pitbull in Staten Island, New York

I have a 2 1/2 yr old male rednose pitbull. Very friendly. He really is a good dog and very loyal but my son is very allergic to him... i have raised him since he is 6 weeks old he is in great health and very active. He loves people and loves to run around. Wish I could keep him but my childs weezing is out of control