Why does peeling raw shrimp cause itchy hands and small bumps, and what should I do about it?

Generally, itching and small bumps on the hands after peeling raw shrimp may be caused by physical friction from the shrimp shell, residual shrimp juice irritation, contact dermatitis, acute urticaria, or infectious papules. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve symptoms under a doctor's guidance through general care, medication, and other treatments. Specific analyses are as follows:

1. Physical friction from shrimp shells: The edges of shrimp shells are sharp and rough. Repeated friction against the skin during peeling can damage the skin barrier, causing local redness, itching, and tiny bumps. Wearing thin disposable gloves before peeling or using scissors to cut open the shells can reduce direct contact. If itching occurs, apply cold compresses with water to relieve discomfort, and avoid scratching to prevent further injury.

2. Residual shrimp juice irritation: Raw shrimp juice contains histamine-like substances and proteins that can irritate nerve endings when left on the skin, leading to itching and small bumps. Immediately wash hands thoroughly with running water and neutral soap after handling shrimp, carefully scrubbing between fingers and under fingernails. Dry hands completely with a clean towel afterward.

3. Contact dermatitis: Shrimp proteins act as allergens, triggering skin inflammation. This results in scattered red bumps on the hands accompanied by significant itching, usually limited to areas of contact. Discontinue contact with raw shrimp immediately. Follow medical advice to apply topical medications such as hydrocortisone butyrate cream, desonide cream, or mometasone furoate cream, and avoid exposure to seafood allergens.

4. Acute urticaria: When an allergic reaction worsens, hive-like welts appear on the hands with intense itching, possibly spreading to other body parts. Avoid washing the affected area with hot water. Take oral antihistamines such as cetirizine hydrochloride tablets, loratadine capsules, or ebastine tablets as directed by a physician. Maintain a light diet and avoid spicy foods and seafood.

5. Infectious papules: Bacteria or parasites present on the surface of raw shrimp may remain on the hands and enter broken skin, causing infection, with pus sometimes forming at the top of the bumps. Keep hands clean and dry, and use topical antibiotics such as mupirocin ointment, fusidic acid cream, or compound polymyxin B ointment as prescribed to alleviate symptoms.

When handling raw seafood in daily life, proper protection is essential—consider using specialized kitchen gloves. Include vitamin C-rich fruits and vegetables in your diet to strengthen skin resistance. Promptly clean and treat hands if any discomfort arises, and follow proper care practices to promote skin recovery.