tea caterpillar dermatitis
Introduction
Introduction to tea caterpillar dermatitis Tea caterpillar, also known as tea poison moth, is a larva of the poisonous moth, known as itchy, spicy, spicy, and is a Lepidoptera. It is widely distributed in Zhejiang, , , Sichuan, , Xiang, , Taiwan, Gui and other tea-producing areas. The poisonous hair of the larvae of the tea caterpillars, after puncturing into the skin, the toxic substances overflow, mechanical and chemical effects cause local itching, the more scratching, the more the toxic hair is drilled into the skin, causing tea dermatitis dermatitis, the treatment with transparent adhesive tape Paste the affected area to remove the toxic hair, and then use various anti-inflammatory antipruritic agents. basic knowledge Sickness ratio: 0.00045% Susceptible people: no specific people Mode of infection: non-infectious Complications: dermatitis
Cause
The cause of tea caterpillar dermatitis
(1) Causes of the disease
The venom of the tea larvae's larvae, after puncturing into the skin, toxic substances spill out, mechanical and chemical effects cause local itching, the more scratching, the more the toxic hair is drilled into the skin, causing tea caterpillar dermatitis.
(two) pathogenesis
Its larvae have 600 venomous tumors, which can reach 60,000 to 80,000 in the early stage of ageing. The number of larvae of old larvae can suddenly increase to 2 to 3 million, and the scorpion has sticky hair on the silk. The stinger is arrow-shaped and has small spines around it. It is difficult to pull out after piercing the skin. The center of the poisonous hair is tubular. It has venom inside. After puncturing into the skin, the toxic substances overflow, and the mechanical and chemical action causes local itching. Hey, the poisonous hair is drilled into the skin. Before the tea caterpillars are peeled off, the poisonous hair and the hair fossa are loosened, the poisonous hairs fall off in clusters, the breeze can blow it off, and the numerous poisonous hairs fall on the human body table or the clothes drying in the wind. On the top, it is easy to cause the outbreak of tea dermatitis in the region, which is of great significance in epidemiology.
Prevention
Tea caterpillar dermatitis prevention
Take various measures to eliminate mulberry caterpillars, such as trapping wintering larvae and moths, spraying mulberry nucleopolyhedrovirus (which can kill more than 90% of mulberry caterpillars and not harming silkworms), and protect the natural enemies of caterpillars (parasitic cockroaches, parasitic flies) Wait).
Complication
Tea caterpillar dermatitis complications Complications dermatitis
There are usually no special complications.
Symptom
Tea caterpillar dermatitis symptoms Common symptoms Blisters itchy pimples
The clinical symptoms of rash are mostly caused by the exposed limbs, the abdomen, the upper part of the trunk and the neck and face. It is sudden itching at the beginning, and there is a red papule after scratching. The skin here is slightly higher, and there is a worm-like needle-like size in the center. The crimson dots or small blisters, a few to a few hundred indefinite, have varying degrees of itching, and itchy in the night before going to bed. The clinical manifestations are roughly the same as those of the mulberry caterpillar dermatitis. The epidemic of tea caterpillar dermatitis is caused in the crowd.
Examine
Tea caterpillar dermatitis examination
General skin examination can be.
Diagnosis
Diagnosis and identification of tea caterpillar dermatitis
Previously, there was a history of exposure. The rash was mostly caused by the exposed limbs, the abdomen, the upper part of the trunk and the neck and face. It was suddenly itchy after the beginning, and there was a red papule after the scratch. The skin here was slightly higher, and there was a worm-like needle in the center. The size of the crimson dots or small blisters, from a few to a few hundred indefinite, with varying degrees of itching, can not be tolerated at night before bedtime, according to these clinical symptoms can be diagnosed.
