Please help with my son he is sell drugs?

What drug? If its marijuana you are over reacting, your generation is very ignorant to marijuana. If it is something harder, he is not alone. This happens to a lot of kids. I do not understand how parents could possible throw their kids out. You obviously grew up very sheltered. Just stick with him and tell him how you feel, he will get it one day. Who cares what your neighbors think, this happens to tons of kids and they turn out fine....the ones who don't have parents who throw them out and are more concerned with their appearance to their neighbors.