Blister at the Yongquan point on the sole of the foot

Water blisters on the sole at the Yongquan point may result from physiological factors, and it is advisable to promptly switch to more comfortable footwear. They could also be caused by pathological conditions such as dyshidrotic eczema or athlete's foot, which require appropriate medical treatment. A detailed analysis is as follows:

1. Physiological Factors

If one remains in excessively hot environments for prolonged periods, feet tend to sweat, creating conditions favorable for bacterial growth and leading to blister formation. It is important to change into breathable, comfortable shoes promptly.

2. Pathological Factors

1) Dyshidrotic Eczema (Pompholyx)

Excessive sweating on the soles can leave the local skin persistently moist, potentially triggering dyshidrotic eczema, characterized by clusters of small blisters. Treatment should follow medical advice and may include oral antihistamines such as ebastine tablets, loratadine tablets, or cetirizine hydrochloride tablets.

2) Athlete’s Foot (Tinea Pedis)

Fungal infection of the sole may cause localized inflammatory changes, with spongiosis appearing in the granular layer of the skin. As the condition progresses, it may lead to papulovesicular eruptions and blisters. Treatment should be guided by a physician and may involve topical antifungals such as amorolfine hydrochloride solution, clotrimazole cream, or systemic agents like terbinafine hydrochloride tablets.

Besides the above-mentioned causes, blisters may also stem from eczema, contact dermatitis, or bullous pemphigoid. If discomfort appears on the sole, individuals should seek timely evaluation at a reputable medical facility to determine the exact cause and receive proper treatment, avoiding delays that could worsen the condition.