I'm happy to report that after strict avoidance of sodium lauryl sulfate products for 1 month, my lips are now 100% better. I have put no glycerin or any product on them for three weeks and they are perfect.
I also forgot to mention in my previous post that each time I had Chinese food my lips would swell and itch. I assume this is from the MSG. I had Chinese take-out last night and my lips did itch slightly, but it went away in an hour. I will also avoid Mono-Sodium-Glutamat (Natrium Glutamat) from now on.