I too got very dry lips while doing ll. i found vasiline and lip balm didnt help. I was then recommended Blistex relief cream this is stronger than other creams and worked a treat.
Hi
I am only a week and a wee bit in and I have noticed my lips are cracked too despite glugging the water, will most certainly be getting something to soothe them as my top lip split a tiny bit in the night! Ouch!