Got a sunburn on my forehead that is starting to peel and get flaky! I'm putting aloe Vera whenever I can but its so tempting to peel the dead skin.

Aloe and Neosporin. Seems like you are almost over First and possibly Second degree burn. Continue using the Aloe and add an antibiotic ointment OTC such as Neosporin to promote moisture and hopefully prevent a secondary skin infection. If the dead skin is truly ready to fall of , it probably won't be a problem. Probably washing the area well with soap and water will help remove the dead skin.
Better to let it . Fall off on its own. You might try a moisturizer such as cetaphil or eucerin. Make sure you have a good sunblock and cover up. All the best.