What is this red ring rash around my mole? (Photo)

Hi, I'm from the Philippines and I'm 18. Female. I'm curious about this red ring rash around my mole. Is this melanoma? It did not itch, flake or bleed. it's been here for 3 days. And whenever I touch it, it stings. Is this just some sort of irritation? Or is it melanoma starting to form? What course of action would you recommend at this point? Please help. I'm worried.