Blisters under the skin on the palm of the hand

　　"Water bubbles" usually refer to blisters. The appearance of blisters under the skin on the palms may be caused by physiological factors, or by medical conditions such as eczema or hand fungus. Patients should promptly visit a hospital for evaluation and receive targeted treatment under medical guidance. Specific analyses are as follows:

　　I. Physiological Factors

　　If the palms are frequently subjected to external friction or irritation, it may lead to separation and layering between the epidermis and underlying tissues, accompanied by infiltration of tissue fluid, resulting in localized blister formation. Daily measures should focus on reducing friction and avoiding local irritation to alleviate discomfort.

　　II. Disease-Related Factors

　　1. Eczema

　　Abnormal immune function combined with exposure to allergens may trigger symptoms such as itching, redness, and erosion, leading to blisters under the skin on the palms. Under medical supervision, patients may use medications such as calamine lotion, zinc oxide ointment, or pimecrolimus cream. Additionally, consuming more fresh fruits and vegetables in daily life can help boost immunity.

　　2. Hand Fungus (Tinea Manuum)

　　Hand fungus is a skin condition caused by fungal infection and may present with localized blisters. Symptoms are typically worse during summer and can spread through shared personal items. Treatment may include oral itraconazole granules and topical applications such as miconazole nitrate cream or terbinafine hydrochloride cream, used under a doctor's guidance.

　　Additionally, similar symptoms may also be associated with hand-foot-and-mouth disease, dyshidrotic eczema (pompholyx), or viral herpes infections. Patients should seek hospital evaluation to identify the underlying cause and receive appropriate treatment. Furthermore, maintaining proper hygiene and cleanliness of the affected skin areas is essential in daily life.