Head Wounds and Hair Growth

A: I'm sorry to say that you are unlikely to find ANY means short of surgery to relieve the situation you describe. I presume that when you say "wounds" you are referring to a condition or injury that left scar tissue in the skin and damaged the hair follicles irreparably.
As a hair stylist, I am not licensed to offer you what is clearly medical advice. I simply suggest that based on what you describe as your situation, that the problem is one only likely to be resolved via a medical solution.
Perhaps you should speak to you doctor or dermatologist about the options available to you. These could include minor surgical procedures to expand the scalp area upon which your hair does grow and removing the non-growing section and merging the sides of the removed area(s).
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See also:
Hair restoration
When you are having a hair transplant, where does the donor hair come from?
How long does hair that is pulled out take to grow back completely?