How long does frictional lichenoid rash heal?

summary

Friction lichenoid rash, then the patient's diet should be reasonable. Do not overeat, are seen in 3 to 12 years old children, mostly boys. More than in spring, summer and early autumn, children often have a history of playing with sand or contact with rough objects. How long does frictional bryoid rash heal? Let's go.

How long does frictional lichenoid rash heal?

First, avoid sand and other friction stimulation, preschool children should be more care, reduce the chance of mechanical friction. Generally, only symptomatic treatment is needed, such as calamine lotion for external use or ointment with low concentration of keratin promoter, such as 3% black bean oil and zinc oxide ointment, or corticosteroid ointment, 3-4 times a day. If necessary, antihistamines can be used throughout the body.

Second, it should be differentiated from the common insect bite dermatitis and caterpillar dermatitis in childhood. These two papules may be larger, edema and inflammation are often obvious, conscious pruritus severe. Sometimes it is not easy to distinguish from giomoti crotti syndrome (papular acrodermatitis in children), but the latter has more extensive rashes, larger papules, up to the size of mung bean, flat, red color, larger liver, positive serum HBsAg, which is caused by natural infection of hepatitis B virus.

Third, the pathogenesis is not very clear; It is generally believed that it is related to contact with some objects or mechanical friction, such as playing with sand, toys, etc. due to children's active and poor self-control ability, they do not pay attention to the contact mode and posture, resulting in frequent contact between exposed skin and sand, toys and other friction substances, resulting in the onset of disease. Some people think that it is caused by virus infection, but it has yet to be proved by experiments.

matters needing attention

The disease is self limited, but it is easy to recur after exposure to the original stimulus. At present, there is no relevant content description.