Four Days Ago I Noticed When I Swallowed The Back

Four days ago I noticed when I swallowed the back of my throat burns and it hurts it feel like strep throat. But I looked in the mirror and notice to the left of my uvula I have this hanging lump that looks like a smaller uvula that's never been there before. I touched it and it's soft but it burns so badly. What is this weird thing and how do I treat it??