What causes small itchy bumps on the hands, and what should be done about them?

Small, itchy bumps on the hands are usually caused by factors such as dry skin, scabies, tinea manuum (hand fungus), eczema, or urticaria. If symptoms occur, it is advisable to seek timely medical evaluation at a hospital to identify the underlying cause and receive targeted treatment. Specific causes are analyzed as follows:

1. Dry Skin

When the skin on the hands becomes excessively dry, it may lead to thickening of the stratum corneum, resulting in small bumps accompanied by itching. This condition is commonly associated with seasonal changes, inadequate fluid intake, or improper hand care. To manage it, keep the hands moisturized, regularly apply a moisturizing cream, avoid using harsh cleansers, and increase fluid intake.

2. Scabies

Scabies is a skin condition caused by infection with the Sarcoptes scabiei mite, typically affecting the spaces between fingers. It presents as tiny bumps and intense itching, especially at night, and may be accompanied by characteristic thin, tunnel-like skin lesions. Treatment should be guided by a physician and may include topical medications such as sulfur and boric acid cream or crotamiton cream. In severe cases, oral ivermectin tablets may be prescribed.

3. Tinea Manuum (Hand Fungus)

Tinea manuum is a fungal infection commonly affecting the fingers and palms, presenting with redness, scaling, blisters, and itching. It may also involve skin peeling, cracking, and pain. Treatment should follow medical advice and typically includes antifungal agents such as clotrimazole cream, compound ketoconazole gel, or oral itraconazole capsules.

4. Eczema

Eczema can be triggered by genetic or environmental factors and leads to dry skin, red patches, papules, and severe itching. Besides the hands, eczema may also appear on the face, neck, and behind the knees. Management under medical supervision may include topical desonide cream, loratadine tablets, or cetirizine tablets. Additionally, maintaining clean, dry skin and avoiding contact with irritants is recommended.

5. Urticaria (Hives)

Urticaria often occurs after exposure to allergens such as certain foods, medications, insect bites, or physical stimuli. It manifests as sudden appearance of red or skin-colored welts accompanied by intense itching. In severe cases, symptoms such as difficulty breathing or throat tightness indicative of anaphylactic shock may occur. Avoidance of known allergens is essential. Under medical guidance, medications such as montelukast sodium tablets, compound glycyrrhizin tablets, or diphenhydramine hydrochloride tablets may be used to relieve symptoms and control the condition.

It is recommended to take preventive measures in daily life. Pay special attention to hygiene in public settings to reduce the risk of disease transmission.