Symptom >> Dermatology >> Dermatology

Itching day and night

Introduction
Cause
Examine
Diagnosis

Introduction

Introduction The itching of heavy day and night is caused by hemorrhoids. Acne is a chronic infectious skin disease caused by human mistletoe in the surface of human skin. The disease is highly contagious, mainly through close contact with infection, and can also be indirectly transmitted through clothing, and can be popular among families or groups of people.

Cause

Cause

The onset of acne, delayed onset of allergies plays an important role. In the acne infection period, the serum immunoglobulin level test slightly reflects the B cell activity, IgA decreased significantly during infection, IgG and IgM levels increased significantly, and returned to normal after treatment. The level of IgE in the serum of patients with acne is significantly higher than that of normal people. After the patient is cured, the level of IgE decreases. The IgE produced by sputum infection is specific and does not cross the dust mites antigen.

Hoefling used immunofluorescence technology to find that the dermal wall of the patient has IgM and C3 deposits, which are like cutaneous vasculitis, while the dermal junction has granular IgM and IgG deposits, which are like lupus erythematosus. Neste et al. detected an antigen-antibody complex that binds to complement C1q in the patient's serum. It has also been found that Langerhans cells in the epidermis are damaged, their density decreases, dendrites decrease or shorten or cell bodies increase, and vacuoles and mitochondrial mites appear in the cells. Patients with acne who have been treated for one year often have hypersensitivity reactions to sputum extracts. In patients with nodular acne, inhibitory T cells regulate B cell function.

Examine

an examination

Related inspection

Skin prick test blood routine

Diagnosis based on the symptoms of acne and the patient's medical history.

Diagnosis

Differential diagnosis

Eczema: It is a pleomorphic skin lesion, often fused into a piece, tending to moist and ooze out. There is no need for a good hair.

Itching rash: occurs in the extremities of the extremities, after chronic, from childhood, increased in autumn and winter, often complicated by inguinal lymphadenopathy.

Impetigo: It is good for children, with more exposed parts such as the head and face. It is a small pustule at first, and there is a yellow purulent after breaking. It is common in summer and autumn.

Papular-like urticaria: for most scattered small papules, herpes, or hard vesicles, a small wheal is formed after scratching, and the wheal is still small. Most children are allergic, often accompanied by gastrointestinal dysfunction and tonsil enlargement, which is easy to occur after insect bites.

Skin pruritus: nowhere to make, finger joints are rare. The patient is mainly itchy skin, and the skin lesions are mostly secondary scratches. The onset is often associated with mood swings, visceral diseases or menopause.

Rickets: The skin lesions are mainly secondary scratches. The two sides of the armpits, the waist, the genitals, etc., and the skin with the wrinkles of the garment are more common, and the eggs can be found.