Cracked hands and feet are skin cracks that occur on the hands and feet due to various reasons, medically known as chaps. It is often secondary to certain skin diseases in the hand and foot area, such as fungal infections, eczema, dermatitis, ichthyosis, palmoplantar keratosis, psoriasis and so on. Mostly seen in middle-aged and elderly people, especially workers engaged in manual labor, farmers in winter is a common skin disease. Therefore, it is more common in winter than in summer, and more common in cold and dry areas than in warm and humid areas. It occurs in the fingertips, knuckles, palms, heels and outer edges of the feet. It is because these diseases cause swelling of the skin tissue at the lesion site, reducing elasticity, and then due to the pulling of the activity or because the water evaporates from the keratinized thickened stratum corneum, the stratum corneum shrinks due to water loss, resulting in skin fracture and formation of chaps, and the fracture is mostly consistent with the skin line. Also with these parts of the stratum corneum is thicker, no sebaceous glands secrete sebum to moisten and protect the skin, although there are only sweat glands, winter cold and no easy to sweat, no sweat to moisten the skin, dry skin, loss of elasticity, strong activity, pulling, so easy to occur skin cracking. In the diagnosis of chafing, first of all, fungal and bacterial examinations should be done to exclude tinea pedis and bacterial infections. The incidence of these two diseases is higher in chafing. Cracking caused by ringworm of the hands and feet: The hands and feet are the thickest part of the body’s keratin layer and the best place for fungus, which relies on keratin for nutrition, to live. A positive fungal test is the most reliable basis for diagnosing ringworm of the hands and feet. The palms of the hands, knuckles, lateral edges of the soles of the feet, and heels are prone to keratinization and thickening, and the skin becomes less elastic, and cracking occurs with movement or pressure. However, inflammatory changes occur between the fingers (toes) due to ringworm parasitism, and the skin becomes less elastic after swelling, which can also cause cracking when moving. Preventing fungal infections is the key to avoiding ringworm causing chapping. If ringworm occurs on the hands and feet, it should be treated promptly. The keratinization that appears on the hands and feet should be removed promptly. For example, use a knife to remove or apply salicylic acid, benzoic acid, urea and other ointments to remove the thickened keratin and promote the healing of the fissures. Painful fissures can be taped, or coated with healing cream. Eczema, dermatitis caused by chaps: caused by contact with chemicals, acidic and alkaline detergents and mechanical stimulation caused by skin inflammation, thickening, loss of elasticity, pulling off fibers in the event of chaps. The occurrence of eczema and dermatitis should be treated early. In order to first solve the pain, the fissure can be applied externally skin disease Ning or apply healing cream. When the fissure is well, it can be treated as dermatitis eczema. It is advisable to use emollient, anti-inflammatory, anti-infiltrative tar-like creams (such as bran distillate, black bean distillate, pine distillate) and corticosteroid ointments. Avoid rubbing and scratching locally. Ichthyosis and palmoplantar keratosis are mostly related to congenital factors. There is no cure and the treatment is only symptomatic. For hyperkeratosis, hot water soak should be used to repair the keratinization, or topical ointment containing salicylic acid, benzoic acid and urea should be used to dissolve the keratin. You should pay attention to the regular application of emollient creams. When chaps occur, you can also apply adhesive tape or skin diseases. Palmoplantar pustulosis is a type of psoriasis. It is a group of blisters that occur under the corneal layer of the small and large fissures, which soon turn into pustules, layers of peeling skin, redness and swelling at the base, and because the hands and feet are the most active part of the body, it is easy to pull off the skin tissue and form chaps. Treatment of palmoplantar pustulosis is generally treated as psoriasis. Topical calcipotriol ointment, corticosteroid ointment, and retinoic acid ointment are used. Oral retinoic acid treatment is very effective, and corticosteroids are injected intramuscularly or intradermally into the lesions at 40-60 mg/4-6 weeks. Low doses of cyclosporine are also effective in treating the disease, and treatment usually lasts no more than 3 months, followed by a change to topical treatment. When you treat chancroid first get the diagnosis right. There are many treatment options and individuals respond differently to treatment. If you add an impermeable film seal after applying the ointment to the crack you can speed up the healing and improve the effectiveness. The choice of method must be different from person to person, you can’t just copy and use what you heard someone used to get better.