Dry lip treatment 👄❔

Chelsey
I took roaccutane for a year and a half (acne medication that dries out your skin) and ever since, I've had to use Chapstick almost every hour EVERY day. If i don't have it, my lips horribly dry and get cracked. Does anyone have any treatments or something that I could try to limit the times I have to use Chapstick?? 
Random question but thank you!! 😰😰