I haven't heard of anyone using wound healing products. So to say they don't work is false at this point.
Also I don't think that they would work for everyone. I don't think that this is necessarily a wound for everyone. For those who just woke up with it one day, I find it hard that their condition is a wound. But for those like me, who clearly got this after excessive biting, I think it's by far the most likely theory.
My derm recently made the comparison to a callus or the bottom of your heel. It constantly gets rubbed and is constantly under trauma so the skin thickens up an forms a callus. And it is possible to get it to stop, but it could take time.
Anyways, the only "treatment" I have heard working for more than one person is to allow the lips to heal by themselves. Whether it be with moisture or not. And all of those cases have been lip biters. And although a few of the cases lately, such as Kunfuzed, haven't been that well documented, I find it hard to believe someone who go out of their way and put effort into coming on an EC forum and lying. Especially those who know what it's like to have EC.
I have been skeptical in the past too but when I really thought about it, it's ridiculous. It's just being paranoid.