Cracked lips have not been good may be a combination of chronic lipitis, keratitis, allergic lipitis, lip lichen planus and so on. 1.Chronic lipitis: ① chronic desquamative lipitis lips can be seen dry, cracked, yellowish-white flakes; ② chronic erosive lipitis lip repeated erosion with exudate, there can be a yellow crust, scabs off the visible surface of the vesicle, there is obvious pain. 2. Keratitis: dry lips, the corners of the mouth can be seen erythema, edema, oozing, crusting, cracking. 3. Allergic labiitis: allergic sensitivities caused by allergens stimulation of the lips and mouth peeling, itching, redness and swelling, severe blisters, vesicles, oozing, scabs, cracks, etc., recurrent episodes. 4. Lip lichen planus: the lips can be seen flat raised, accompanied by wax-like film, can be accompanied by ulcers, oozing, cracking. Rhinitis cracked lips have not been good there may be other reasons, such as discoid lupus erythematosus, dryness, it is recommended to go to the hospital in a timely manner to find out the cause of the disease after targeted treatment.