K., I have not had this problem, however as an older person, when I get burned, insect bites, cuts, bruising etc, I don't seem to heal as fast as I did when I was younger. What helps me is a high grade and the purest grade of Tea Tree Oil I can find. Putting this on daily, 2 to 3 times, really helps and I have an old scar, from a burn and scratched on that it by a child before the burn healed properly is also fading away, which really has shocked my spouse, because he thought that scar would be there forever. I received that burn about 5-years ago. I think it has taken longer for fade, because a part of the arm on a place I just don't see at continously daily. Only if I bring my hand up to my face, it can be seen.
If you use something that is going to bleach it, make sure you check on the toxicity of the product and what kind of possible damages it could cause your body in the future, even if it is a prescription drug. Even doctors and scientist are paying more attention to the long term effects. I.E. drug commercials on TV are cautioning us about side effects of drugs. Thank God they are doing that cause for many years they didn't. I really believe in the safest way for health.
If you want to know more about the product I used email me at ____@____.com.