Thank you for replying.
I will continue doing it for a month atleast this time. I do it for as many times as possible and for as long as possible. My top lip hasn't peeled since I started soaking for 8 days now. earlier it used to peel after 3-4 days. But the lower lip peels hasn't improved much. Afer peeling there are lines on lips but the lips again hardens after few days.
About the white line, it forms every time I soak it. I wipe it away with a cloth. Once that stops forming, I think I will be able to say that there is improvement.