Due To Sun Burn Have Noticed Dark Red Blotches On Cheeks & Forehead

I got badly sun burnt on mainly my face a few days ago, and I have sun stroke but the burns on my face are really bad and sore, deep dark red blotches on my cheeks and forehead, however on my nose the sun burn is orange and crusty one one side, also on my leg a dark colour discolouration appeared on my skin.. I am really worried and i can't seem to get any professional advice