Is It Difficult to Treat a Keloid Scar (Pea Sized Lump) in the Upper Lip?

I had a bad fall, and a tree branch tore my lip and upper lip. It is still painful after three and a half weeks. I was told by a doctor that the pea-sized lump under my scar is a keloid. I'm worried, as everything I read suggests this will be difficult to treat. Will it be treatable?