Since a few days my lips have been dry and cracking. From a quick search I found likely causes for me could be dehydration, eating hot (as in spicy) food or vitamin deficiencies.

Does anyone know what I should eat or avoid or anything else to cure this?

I hope it's not caused by spicy food because I like eating spicy, I will make sure to drink more water in case it is dehydration. Does anyone know what specific deficiencies are known to cause this?

Thanks