Skin diseases caused by zinc and its compounds
Introduction
Introduction to skin diseases caused by zinc and its compounds 1. Industrial application Zinc is mainly extracted from polymetallic sulfide ore and is mainly used in alloy manufacturing. Its compound zinc chloride (ZnCl2) is used in tempered paper production, wood preservation, batteries, etc.; zinc sulfate (ZnS04·7H2O) is used in electroplating, tanning, cotton and pharmaceutical industries; zinc chromate (ZnCrO4) is used in pigments. Paint manufacturing; zinc oxide (ZnO) is used in paint pigments and rubber, plastic fillers and pharmaceuticals. 2. Zinc is a gray-white metal, insoluble in water, soluble in strong acid or lye. The industrial impact on human skin is the stimulating reaction caused by contact with zinc salt solution, and the heat of casting caused by contact with zinc oxide dust. Wait. basic knowledge The proportion of illness: 0.001% Susceptible people: no special people Mode of infection: non-infectious Complications: contact dermatitis, eczema, urticaria
Cause
Causes of skin diseases caused by zinc and its compounds
Contact with zinc (30%):
The industrial impact on human skin is more prominent than the stimulating reaction caused by exposure to zinc salt solution, and the heat of casting caused by exposure to zinc oxide dust.
Pathogenesis
Exposure to soluble zinc salts (ZnCl2, ZnS04) can cause inflammatory irritation of the skin or mucous membranes. Salts such as zinc chloride have astringency, hygroscopicity, and corrosivity, and can precipitate proteins, so that the skin reaction caused by primary stimulation is not an allergic reaction.
Prevention
Prevention of skin diseases caused by zinc and its compounds
1. Strengthen personal protection, including wearing long rubber gloves, long boots, long aprons, protective glasses, masks, etc.
2. Common contact sensitizers include metal (glass frames, belt buckles, watches, alloy necklaces, earrings, etc.), plastics (sandals, decorations, etc.), cosmetics, tapes, etc. Contact with allergic dermatitis is characterized by the onset of contact, and some even have the same special shape as the contact.
3. Appropriate exercise, choose some activities suitable for you, such as climbing, walking, dancing, etc., according to your physical condition, choose the health food suitable for you, improve immune function, improve physical fitness, not sick or less sick, improve quality of life .
Complication
Skin disease complications caused by zinc and its compounds Complications contact dermatitis eczema urticaria
Skin diseases caused by zinc and its compounds can cause:
Contact dermatitis
Symptoms: dermatitis, exfoliative dermatitis, allergic dermatitis, skin irritation, itchy skin, acne-like rash.
2. Eczema
Symptoms: Itching, pimples, herpes, pustules, erythematous rash, scales, eczema, blistering, skin lesions.
3. Urticaria
Symptoms: Windy, polymorphous erythematous rash, itching, edema, maculopapular rash, redness, itchy, scaly skin redness.
Symptom
Symptoms of skin diseases caused by zinc and its compounds Common symptoms Itching pimples, abdominal pain, dizziness, chest tightness, nausea
The rash is mainly distributed in the limbs, trunk and other parts. The upper limbs, especially the forearm flexion surface, are more common. The basic damage is the red papules of the needle size, scattered or densely integrated, the edges are unclear, and the main sense is itching, except for dermatitis. A small number of people with sporadic sesame to mung bean size shallow ulcer, its shape is similar to chrome sores, accompanied by pain, in addition to skin symptoms, may be accompanied by eye conjunctiva stimulation, dizziness, upper abdominal pain, chest tightness, nausea and dry throat, etc. Salts such as zinc chloride have astringency, hygroscopicity, and corrosiveness, which can precipitate proteins. Therefore, the skin reaction caused by primary irritations rather than allergic reactions is caused by direct splashing on the skin or by sweat. Stimulates the skin, lightly manifests as dermatitis; heavy causes ulceration due to corrosion or carbonization, and other systemic symptoms may be caused by inhalation of air containing zinc chloride particles.
Examine
Examination of skin diseases caused by zinc and its compounds
Urine routine, blood routine, routine, physical examination of skin diseases, do patch test to confirm the diagnosis.
Diagnosis
Diagnostic identification of skin diseases caused by zinc and its compounds
diagnosis
Metal allergy is a type of contact dermatitis, which means that only people with special constitutions will develop allergic symptoms after exposure to specific metals, and allergies will occur only in parts of the body that are exposed to metal. Food allergies, pollen allergy, atopic dermatitis, etc. are allergic symptoms, erythema, itching. Therefore, to identify yourself because of metal allergy or allergies for other reasons, only need to judge from the scope of allergic symptoms.
Differential diagnosis
The method for identifying skin diseases caused by zinc and its compounds can also be examined by contact with soluble zinc salts, zinc chloride and other salt histories; rashes are mainly distributed in limbs, trunks, etc., and the upper limbs, especially the forearm flexion, are More common, the basic damage is the red papules of the needle size, scattered or densely integrated, the edges are unclear, and the subject feels itching.
