My Hair Was Burned With a Relaxer and It Falls Out and Grows Back Every 3 Years

I had my hair relaxed 9yrs ago and got a burn in the balding area. the burn healed but hair from that area started thinning. 3 yrs later it fell off then grew back again, thinner and on a larger area. 3yrs later same thing happened again. Last yr was another 3yrs later when it fell off again. i haven’t used hair relaxer on my head since 9yrs ago.my scalp hurts a lot on that area.what can i use to restore my scalp and get my hair back. Please please help

You seem to describe a cycle of 3 years where your hair thins and grows back. I have never heard about such cycle and I am not sure how it relates to the chemical relaxer from 9 years ago. Our hair does grow and fall out in cycles but it is not very predictable nor synchronous. Human scalp hair is constantly growing and falling asynchronously. We can lose 100-200 hairs a day but there are 100-200 new hairs growing elsewhere on the scalp at the same time. So this cycle should not be readily perceptible. On occasion some experience telogen effluvium where there is significant hair loss without any inciting cause. There is no treatment for telogen effluvium other than time, as hairs do grow back within a year.

Pain on your scalp is not normal and you should have it checked by your dermatologist.