Many small blisters have developed under the skin.

The appearance of numerous small blisters under the skin may be associated with hand eczema, tinea manuum (hand fungal infection), or dyshidrotic eczema, among other factors. Proper medication is required for treatment. Specific analyses are as follows:

1. Hand Eczema

This is a skin inflammatory condition localized to the hands. Excessive sweat gland secretion combined with poor excretion can lead to sweat retention in the hands, resulting in clusters of small blisters. Treatment should follow medical advice and may include topical medications such as triamcinolone acetonide/econazole cream, mometasone furoate cream, or clobetasol propionate cream.

2. Tinea Manuum (Hand Fungal Infection)

This condition is caused by a fungal infection of the skin on the hands. Dermatophytes invade the skin of the palms, leading to blister formation and scaling, often accompanied by itching. Treatment should be conducted under medical guidance using antifungal creams such as luliconazole cream, bifonazole cream, or compound ketoconazole ointment.

3. Dyshidrotic Eczema

This is a vesicular skin disorder. When excessive sweating or overly moist conditions occur on the hands, clusters of small blisters may appear on the skin surface. Treatment should follow medical advice and may include boracic acid solution, triamcinolone acetonide-urea cream, or calamine lotion.

In addition to the above causes, similar symptoms may also result from contact dermatitis, pemphigus, herpes zoster, or other conditions. If any discomfort or abnormal symptoms occur, prompt medical evaluation at a hospital is recommended to determine the exact cause and receive appropriate treatment under professional medical supervision.