The most common disease is keratinized chapped eczema, which occurs and hands often contact with irritants, such as contact with detergents or some chemical reagents, resulting in dry flaky skin, cracks and itching, generally most of the hands symmetrically appeared. Treatment should avoid contact with irritants, local use of strong hormone ointment, such as halometasone cream topical application, can also be applied externally compound lactic acid cream, which has the effect of anti-dry cracking. In addition to the common keratosis pilaris type eczema, another disease can also appear hand popping skin cracks that is ringworm, ringworm is mostly infected by foot fungus, usually unilateral hand occurs, the diagnosis needs to go to the hospital to do fungal laboratory tests. If it is ringworm, the treatment can be applied externally antifungal drugs, such as naftifine ketoconazole cream, terbinafine cream, etc., if necessary, you can take oral terbinafine or itraconazole.