Hello and welcome to the forum. Thanks for the question. Scabs that won't heal can be a sign of something that you need to have a doctor look at to determine the cause. That can be a classic sign of skin cancer and it is in a spot that is highly susceptible to that. I am not sure though if that is exactly what you are describing. Is it a scab that won't heal? The scab is there in between exfoliation and the process of exfoliation pulls the scab off?
I was going to ask, what kind of exfoliation do you do? Is it just a mild scrub and this happens? Or something more harsh?