Protein contact dermatitis

Protein contact dermatitis (PCD) is a skin condition characterized by an allergic reaction to certain proteins found in food, plants, animals, or other substances. The condition is a type of contact dermatitis, which is a skin reaction resulting from exposure to allergens or irritants.

Causes

Protein contact dermatitis is caused by an allergic reaction to specific proteins. These proteins can be found in a variety of sources, including:

• Food: Certain foods, such as seafood, eggs, and dairy products, can contain proteins that cause PCD.
• Plants: Some plants, like poison ivy or poison oak, have proteins that can trigger PCD.
• Animals: Proteins in animal dander, saliva, or urine can cause PCD.
• Other substances: Certain metals, rubber, and cosmetics can also contain proteins that trigger PCD.

Symptoms

The symptoms of protein contact dermatitis can vary from person to person, but they typically include:

• Redness and itching of the skin
• Swelling or blisters
• Rash or hives
• Dryness and cracking of the skin

Diagnosis

Diagnosis of protein contact dermatitis is typically made through a combination of patient history, physical examination, and skin tests. The patch test is a common method used to identify the specific proteins causing the allergic reaction.

Treatment

Treatment for protein contact dermatitis primarily involves avoiding contact with the offending proteins. This may require changes in diet, personal care products, or work environments. Topical creams and ointments, such as corticosteroids, can also be used to manage symptoms. In severe cases, systemic medications may be necessary.

See also

• Contact dermatitis
• Allergic reaction
• Skin condition