How can I get rid of crusty snot?

Could it be b/c maybe I didn't blow enough? It kinda feels a little wet now, and I can feel a little part near the inner walls of my nostrils that feels like it could peel, but it hurts like crazy when I try to peel it. I can still breathe mostly fine, but it is a little disturbing. Is it harmful? Is there anything I can do to cure it? Do I need pharmacy drugs?