Lip dryness and peeling. My condition.

I have been suffering for lip dryness for the past 2 and half years. Kind of exfoliative cheilitis. It peels once in two days without any pain or bleeding. When peeled off it looks normal and by next day I feel some dried layer by next day and the second day while brushing it again peeled off. When come to contact with water it becomes white and loosen. I have consulted many dermatologist and so far no cure. I tried the following medicines with no luck so far.Tablets. Cod liver, zincovit, vitamin b complex, gaven, remune al. Topical. Nmfe, liquid paraffin, chaptex, tarcolimus, sebamed, kenakort, desonide, momate, flutivate, lipz. I came across some treatment options like excimer laser, diode laser, intralesional corticosteroid and also one ointment called calendula. Can anyone help me out for treating my condition.