Penis Foreskin Cracking

I am having a strange problem for the first time in my life. i am 29 years old. Suddenly one day i discovered that there is a white layer on my penis under my foreskin, on the glans. I had pain on the foreskin when i was pulling it back to clean it with water. the layer was pretty thick and needed time to get off. i used to clean with warm water but keeps coming back daily. Also when i rub the layer off or wash it away, My foreskin becomes extremely dry and develops cuts as the skin tears apart and takes time to heal and repeats every time. I think it is yeast infection. I use on this lavender oil. I feel relax some days. but after few days when i stop applying lavender oil it comes again. i dont have any sex. please advise me a cure & also the reason for the same.