Nickel Allergy

What are the symptoms of a nickel allergy?

People with a nickel allergy usually begin to develop a skin reaction 12 to 48 hours after coming into contact with an item containing nickel. The symptoms of a nickel allergy include:

• skin rashorbumps
• rednessor other changes in skin color
• dry patches on the skin that resemble a burn
• itching
• blisters(in very severe cases)

Nickel is also one of the main causes of a skin rash known asallergic contact dermatitis.

Someone with a nickel allergy almost always has a localized response following exposure to objects containing nickel. This means that the allergic reaction only affects the part of the skin that comes into contact with nickel.

Eating foods containing small amounts of nickel may also trigger an immune response that causes changes in the skin.

Allergic contactdermatitiscauses the following symptoms:

• severe itching
• scaly, raw, or thickened skin
• dry, discolored, or rough skin
• warm, tender skin
• fluid-filled blisters

The rash usually lasts from two to four weeks after exposure.

In rare cases, a nickel allergy can also lead to respiratory problems, including:

• runny nose
• nasal inflammation
• asthma
• sneezing

People with this type of reaction should take preventive measures immediately.

What causes an allergic reaction to nickel?

The immune system is responsible for promoting chemical changes in the body that help fight off harmful invaders, such as viruses and bacteria. People with allergies have an immune system that mistakes a typically harmless substance for an intruder.

The immune system begins to produce chemicals to ward off the substance. The immune system of someone with a nickel allergy is reacting to the object or food containing nickel. That reaction leads to various symptoms, including rashes and itching.

This adverse reaction may occur after the first exposure to nickel or after repeated and prolonged exposure.

The exact cause of a nickel allergy isn’t known. However, researchers believe that the sensitivity to nickel may be genetic, that is, inherited from a relative.

How is a nickel allergy diagnosed?

Your doctor or dermatologist can diagnose a nickel allergy. Call them right away if you have a skin rash and don’t know what caused it. Your doctor will first ask you about your symptoms, including when they started and what appears to make them worse.

Be sure to tell your doctor about any medications, supplements, or new foods and products you’ve tried recently.

A patch test is often performed if a nickel allergy is suspected. During the patch test, your doctor applies a small amount of nickel over a patch. The patch is then placed on your skin.

Patch tests are usually very safe and shouldn’t cause a major allergic reaction. They should only cause a minor response in people who are allergic to nickel.

Your doctor will observe your skin for about 48 hours after the patch test and check for signs of an allergic reaction. If the skin looks irritated, then you may be allergic to nickel. In some cases, the results aren’t clear and further testing is needed.

How is a nickel allergy treated?

There’s no cure for a nickel allergy. As with other allergies, the best treatment is to avoid the allergen.

However, your doctor may prescribe one of the following medications to help reduce the skin irritation caused by a nickel allergy:

• corticosteroid cream
• nonsteroidal cream
• oral corticosteroid, such as prednisone
• oral antihistamine, such as fexofenadine (Allegra) or cetirizine (Zyrtec)

Make sure to follow your doctor’s instructions carefully when using these medications.

The following home treatments may also help:

• calamine lotion
• moisturizing body lotion
• wet compresses

Tell your doctor if treatments aren’t helping or if they’re making symptoms worse.

You should also contact your doctor immediately if you experience increased redness, pain, or pus in the affected area. These symptoms may be a sign of infection and need to be treated with antibiotics.

过敏reacti如何on to nickel be prevented?

While the allergy itself can’t be prevented, the best way to prevent an allergic reaction to nickel is to avoid all objects containing it. Always check with the manufacturer, retailer, or label to find out if an item is made of or contains nickel before you buy or use it.

Nickel is also present in a surprisingly large number of foods and food products, including:

• black tea
• nuts and seeds
• soy milk and chocolate milk
• chocolate and cocoa powders
• certain canned and processed foods, including meat and fish (check labels)
• certain grains, including:
  • oats
  • buckwheat
  • whole wheat
  • wheat germ
  • whole wheat pasta
  • multigrain breads and cereals
  • certain vegetables, including:
    • asparagus
    • beans
    • broccoli
    • Brussels sprouts
    • cauliflower
    • spinach
    • all canned vegetables
    • certain legumes, including:
      • chickpeas
      • lentils
      • peas
      • peanuts
      • 大豆制品,如豆腐
      • certain fruits, including:
        • bananas
        • pears
        • all canned fruits

Talk to your doctor about avoiding these foods if you’re allergic to nickel. People with a nickel allergy should also:

• abstain from using stainless steel cooking equipment
• avoid wearing jewelry containing nickel or getting a body piercing
• avoid wearing clothing with plastic or coated zippers and buttons
• check with an orthodontist about nickel before getting orthodontic braces
• ask an ophthalmologist if eyeglasses contain nickel before buying them
• tell doctors about a nickel allergy before having any surgeries

如果你有一个镍过敏和工业上工作ry where you’re frequently exposed to nickel, talk to your employer and your doctor. They can help you determine a plan moving forward for avoiding nickel and preventing an allergic reaction.