How To Treat Raw Skin Patches On The Nose?

hello doctor,2 weeks back i applied bleaching cream on my face.I felt some irritation on my nose ,i rubbed my nose with tissue and to my horror i saw the skin on bridge of my nose peeled off.No blood oozed but i could see raw pink flesh.5-6 days later a scab also formed which got removed when i was bathing but now there is red raw skin patch on my nose it has been 15 days,but normal skin hasnt come yet.What should i do and why is the skin so raw and pink after so many days.