There is nothing to forgive. This condition has a horrible impact on a person's psyche and I won't be the only one to tell you that.
I have not tried Nigella Sativa. However, I am doing oil pulling now and it does help. My buildup is thin and slides off before a week is over. I can attest that the leave it alone method is definitely NOT the way to go because... come on... 19 years folks.
There is definitely something wrong with our lips and they definitely need help in trying to recover from the inflammation and whatever other things associated with EC.
I went to a doctor like the third year of having EC but then I just ran away from it. I was peeling whatever buildup came on my lips in order to try to appear normal. However, I felt horrible doing that so now I am facing my EC head on. I go through a sh!t load of embarrassment every single day. But, I cannot go to my grave with this sh!t because I will not rest in peace.