Severe itching of the scalp with blood scabs

Introduction The scalp is itchy and bloody: the head is parasitic on the head, more common in poorly ill women and children, especially in the back of the head. The eggs on the hair are oval-shaped white spots, which are attached to the hairline side, commonly known as scorpions. If you look carefully, you can see that the head squats on your head. There are erythema and papules on the bite, and itching is severe. It is often scratched and has bloody and eczema-like changes. In severe cases, there is a leaching of the slurry, which can cause the hair to stick together and emit an odor. Pay attention to personal and collective hygiene, and control cross-infection is a measure to prevent the occurrence of the disease.

Cause

The patient spreads due to shared beds, clothes (hats, scarves), combs, brushes, and the like. When you leave the body, the scorpion can only survive for one to two days. Having a head lice does not mean that it is not clean. All socioeconomic groups are infected. As long as there are lice or eggs on the body or clothes, there is a possibility of infection. The patient should be isolated until the live lice and eggs are eliminated. Patients should be quarantined within 24 hours of administration.

an examination

Related inspection

EEG blood test

Head lice can cause severe eczema dermatitis and purulent diseases in the posterior neck, such as folliculitis, carbuncles, abscesses, severe scarring and permanent hair loss, and cervical lymph nodes can also be swollen and inflamed. Finding a head lice or licking eggs is easy to diagnose. The egg sticks to the hair and is not easy to scrape. It is easy to distinguish from ordinary hair dander. The plaits and licking eggs are hidden in the wrinkles of the underwear or the quilt, often sucking human blood at the scapula, back and waist, producing hemorrhagic red spots, papules or wheals, and itching. After a long time, the scratches spread throughout the body, mixed with blood stasis and exudate, and there may be secondary infections. According to localized itching, there are papules, blood stasis, and scratches on the skin. At the same time, cockroaches and cockroaches are found on the underwear and hair to confirm the diagnosis.

Differential diagnosis

The disease needs to be differentiated from acne, eczema and pruritus.

Acne is an infectious skin disease introduced by aphids (). The locusts are divided into two types, male and female. They are parasitic on the body surface. After mating on the surface of the skin, the males die. The females drill into the stratum corneum of the skin to make tunnels, lay eggs, excrete the faeces, and dig forward. The females die from the worms. At the blind end, the toxins secreted by the mites induce skin itching. The eggs re-develop into larvae, gradually growing up and crawling out of the insects to become adults. When diagnosing acne, the doctor will perform an examination to determine the diagnosis of acne.

Eczema (eczema) is a common inflammatory skin disease caused by a variety of internal and external factors in the epidermis and dermis. It is characterized by conscious pruritus, morphological lesions, symmetric distribution, tendency to exude, chronic disease , easy to recurrent.

Itching of the skin refers to the symptoms of conscious skin itching. Due to the wind and evil attack, or due to blood heat interference, or blood deficiency and other diseases. Common in various skin diseases, as well as food allergies, drug allergies, premenstrual rash, pregnancy rubella, pruritus and other diseases. The cause of pruritus is still unclear and is believed to be associated with certain diseases.

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