Eczema sicca is mainly due to skin itching caused by the reduction of water content in cuticle. In daily life, the main reasons that easily lead to the decrease of moisture in epidermis and stratum corneum are: dry air, cold, frequent bathing, scalding with hot water, old age and so on. These factors may lead to the decrease of sebum secretion, thus inducing eczema sicca.

Symptoms of eczema:

1, itching: The symptom of eczema is persistent itching, which cannot be solved by distraction. When it is quiet, itching will get worse, forming a state of paroxysmal aggravation and persistent itching.

2, exudation: there will be exudation, otherwise it is not easy to diagnose the rash without running water. In addition, in the chronic phase of eczema, the rash may be dry, but there will still be exudates in the acute attack.

3, the polymorphic symptoms of eczema: eczema is characterized by a polymorphic rash, which can be divided into primary rash and secondary rash. The primary rash has papules and blisters, and the secondary rash has erosion and exudation. Patients usually have both primary and secondary rashes.

Extended data:

Etiology: It is mainly related to skin moisture loss, sebum secretion reduction or dysfunction. Seen in ichthyosis patients or the elderly. Too many baths, the use of strong alkaline soap, facial cleanser or high bath temperature can also cause artificial skin degreasing.

Clinical manifestations: this disease is more common in winter, and it is easy to occur in the elderly and those who bathe too much. Legs reach out frequently. Because the sebaceous gland function is reduced, the onset is often slow.

Generally, itching begins after bathing at the age of 50, and gradually increases with age. Excessive cleaning or the use of degreasing agents lead to many acute diseases, which are actually irritating contact dermatitis. This disease can also be seen in cancer patients, people who use diuretics or type II histamine blockers, and people infected with HIV.

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