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n. 细动脉

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  • Contact dermatitis - Symptoms and causes - Mayo Clinic
    Often people have irritant and allergic reactions at the same time Irritant contact dermatitis is the most common type This nonallergic skin reaction occurs when an irritant damages your skin's outer protective layer Some people react to strong irritants after a single exposure
  • Types of dermatitis - Mayo Clinic
    Irritant contact dermatitis develops when the skin comes into contact with certain things that cause a rash Irritant contact dermatitis is different from allergic contact dermatitis but shares some features Some people react to strong irritants after just one exposure Others may develop a rash after repeated contact with even mild irritants
  • Dermatitis - Symptoms and causes - Mayo Clinic
    Overview Dermatitis is a common condition that causes swelling and irritation of the skin It has many causes and forms and often involves itchy, dry skin or a rash Or it might cause the skin to blister, ooze, crust or flake Three common types of this condition are atopic dermatitis, contact dermatitis and seborrheic dermatitis Atopic dermatitis is also known as eczema
  • Latex allergy - Symptoms and causes - Mayo Clinic
    Latex allergy may cause itchy skin and hives or even anaphylaxis Anaphylaxis is a possibly life-threatening condition that can cause throat swelling and serious difficulty breathing
  • Bee sting - Symptoms and causes - Mayo Clinic
    Learn about symptoms, treatment, self-care tips and prevention of bee stings, which in some people cause severe allergic reaction
  • Allergies - Symptoms and causes - Mayo Clinic
    The symptoms can affect the airways, sinuses and nasal passages, skin, and digestive system Allergic reactions can range from mild to severe Sometimes, allergies can trigger a life-threatening reaction known as anaphylaxis Hay fever, also called allergic rhinitis, can cause: Sneezing Itching of the skin, nose, eyes or roof of the mouth
  • Mold allergy - Symptoms causes - Mayo Clinic
    A mold allergy causes the same symptoms that happen in other types of upper respiratory allergies, such as hay fever Symptoms caused by a mold allergy can include: Sneezing Runny or stuffy nose Cough and postnasal drip Itchy eyes, nose and throat Watery eyes Dry, itchy skin Mold allergy symptoms vary from person to person and range from mild to severe You might have year-round symptoms
  • Pet allergy - Symptoms causes - Mayo Clinic
    Skin symptoms Some people with pet allergy also may have skin symptoms, a pattern known as allergic dermatitis This type of dermatitis is an immune system reaction that causes skin swelling and irritation Direct contact with an allergy-causing pet may trigger allergic dermatitis, causing symptoms, such as: Raised, discolored patches of skin called hives Eczema Itchy skin
  • Itchy skin (pruritus) - Symptoms and causes - Mayo Clinic
    Irritation and allergic reactions Wool, chemicals, soaps and other things can irritate the skin and cause rashes and itching Sometimes a substance, such as poison ivy or cosmetics, causes an allergic reaction Also, reactions to certain medicines, such as narcotics to treat pain (opioids) can cause itchy skin
  • Nickel allergy - Symptoms causes - Mayo Clinic
    Nickel allergy symptoms affecting the skin include: Rash or bumps on the skin Severe itching Changes in skin color Thickened, leathery, cracked skin Blisters and draining fluid Allergic reactions other than widespread skin conditions are uncommon But symptoms also may include upset stomach, nausea, headache or difficulty breathing





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