Symptoms of scabies infection

summary

Scabies is a kind of permanent parasitic mites, belonging to acariae, sarcopteriae. As soon as people touch it, it will parasitize in the epidermis of human and mammalian skin, causing a kind of stubborn skin disease with severe itching, namely scabies. Symptoms of scabies infection? Let's talk about it

Symptoms of scabies infection

The lesions on the parasitic site of Sarcoptes scabiei were small papules, small blisters and tunnels, most of which distributed symmetrically. Scabies papules are light red, needle size, sparsely distributed, and the middle skin is normal; It can also be clustered, but not integrated. At the blind end of the tunnel, there are usually small gray spots with the size of needle tip.

Severe pruritus is the most prominent symptom of scabies, which is caused by the mechanical stimulation of female mites when digging tunnels and the allergic reaction caused by excreta and secretion in daily life. Pruritus is mild during the day, aggravated at night and worse after sleep. It may be due to the stronger activity of Sarcoptes scabies in warm bedding at night or the more frequent rodent feeding at night, which may affect sleep. As a result of itching, scratching, can cause secondary infection, abscess, folliculitis or furuncle.

According to the contact history and clinical symptoms, it is not difficult to make a diagnosis. If the scabies can be found, the diagnosis can be made. In the past, the method of detecting Sarcoptes scabies was commonly used to remove the Sarcoptes scabies by breaking the end of the tunnel with the tip of a sterilized needle; Or use sterilized mineral oil to drop on the affected area of skin, then gently scrape the local area with a blade, and take the scraping out for objective examination. Domestic scholars used anatomic mirror to examine the lesion site directly, and found that there was a tunnel and the outline of scabies at the blind end. That is to say, the tip of scalpel was used to pick out the scabies, and the diagnosis was made. The positive rate was 97.5%.

matters needing attention

Pay attention to personal hygiene, "three frequently": frequently bathing, frequently changing clothes, frequently drying clothes. Do not live with the patient, shake hands, and do not put the patient's clothes together. If the patient is found to be treated in time, the changed clothes should be boiled to kill insects. If they can't be boiled, they should be wrapped in plastic for one week and cleaned after the scabies starve to death.