Blister On Lip, Bleeding. Side Effect Of Phentermine? Zilactin Good Choice? What Is Wrong?

Question: I have a blister on my lip that looks more like the skin has been ripped off and it was bleeding more than a blister or cold sore. I dont have herpes as well as NKDA. There is only one blister, its not a cluster. My mouth and lips have been getting dried out lately which I believe is a side effect from the phetermine I have recently started taking and in believe my lip was peeling i had been pulling the dried flakes off, not that there have been that many. The other day about two days before the sore came up I started using burts bees chapstick, which i have used before a couple years ago and remeber that particular chapstick leaving a burning feeling on my lips but no sore. I also have recently cut a jalepeno cu and did not use gloves, (it was my first time, leason learned) but my figer tips burned for a couple days and the night i cut the pepers i did touch my lip and then stupidly tired to scrub it off with soup and water making my lips burn like crazy. Which happen to be my upper lip and is my where the sore is. The EMT in me tells me that I ripped the skin off and it got a little infected or I am having some types of recation from the pepper or chapstick. I have tried an over the counter cold sore and fever blister medicine called zilcatin, not relizing what I had grabbed, the sore was a little red and swollen and since using the zilcatin it now looks bloody and chapped and scabbed over. Whis the zilcatin might have burned it more. I dont know I just want to know a proper medicine to heal it, I used some hydrogen proxide and it helped a little not much.