At the time, I had been using just plain Burt's Bees Lip
Balm for many weeks. When I got the symptoms, I used a bit
more of the balm than I usually did, thinking it would help the dryness. When nothing seemed to be working, I stopped using it altogether. In time, my lips healed, and I switched to Softlips lipbalm in both vanilla and peppermint flavors. I showed no reaction from their usage for about a month. Then, I started getting the same reaction that I got from the Burt's Bees Lip Balm.