I washed my nose with a facial rock then it peel off my skin and dry it off now it's heeling but i have purple/dark spots on my nose what should i do?

Wait for 2-4 weeks: Most facial peels take 2-4 weeks for primary healing and another 4-6 weeks for complete healing. The purplish spots are usually benign or indicate blood near the surface. Occasionally they can be more significant indicating conditions like rosacea or skin cancer. Wait at least 4 weeks, but preferably 10 weeks from the peel. If still visible, then see a skin doctor