I'm an asian male in my mid-twenties with very unevenly pigmented skin on my back and stomach due to tinea versicolor. The tinea versicolor cleared about 5 years ago, and I have taken measures to make sure it does not come back (selsun blue wash once a week). However, my skin tone remains extremely uneven, almost to the point where it looks like I have mild vitiligo. I even avoid the sun to prevent my skin from tanning unevenly. My dermatologist prescribed a chemical peel, but it had very little effect. Are there any effective (and economical) treatments that can help return my skin tone to normal?