Hair Loss After Radiation Treatment

I lost a lot of hair due to radiation treatment last June. I had a benign tumor removed and my doctors wanted to be sure they effectively treated me after surgery. They pretty much covered the top of my head with the treatments. It all fell out but only some of it grew back. And it’s obvious. I had a full, thick head of hair before this and now it looks like I have male-pattern baldness (and a large scar on top of my head from the surgery is visible). Would finasteride be at all helpful in this case? I can’t seem to find any information that speaks to this particular problem.

Finasteride will not reverse hair loss caused by radiation, as it only works for men with genetic hair loss. The good news is that hair loss from radiation may grow back, though it can take up to one year.