Why are there white peeling skins all over the feet after using foot soak powder?

Generally, the appearance of white skin on the feet after soaking with Zuguang Powder may be caused by factors such as keratin layer water absorption and swelling, temperature changes, softening of the stratum corneum, eczema, or tinea pedis. It is recommended to seek medical attention promptly and receive symptomatic treatment under a doctor's guidance. Specific analyses are as follows:

1. Keratin Layer Water Absorption and Swelling

When the feet are soaked in water, especially hot water, the stratum corneum absorbs moisture and swells, causing the skin surface to appear white and flaky. As the moisture evaporates, the skin gradually returns to its original color.

2. Temperature Changes

During foot soaking, hot water causes blood vessels in the skin to dilate, improving circulation. After soaking ends, sudden vasoconstriction may also lead to temporary whitening of the skin. After soaking, allow the body to slowly adapt to room temperature—avoid immediate exposure to cold air or cold water—and let the skin recover naturally.

3. Softening of the Stratum Corneum

Medicinal ingredients in Zuguang Powder, such as benzoic acid and salicylic acid, have keratolytic or corrosive effects. During foot soaking, these components penetrate the skin and soften the stratum corneum, leading to whitening and excessive peeling of the skin. Soaking time should be controlled; generally, 20–30 minutes is recommended to avoid prolonged immersion.

4. Eczema

Eczema is often associated with seasonal changes, decreased immunity, or heightened skin sensitivity to irritants. After using Zuguang Powder, the feet may develop white, peeling skin, possibly accompanied by itching and red patches. It is recommended to use medications such as desonide cream, fexofenadine hydrochloride tablets, or erythromycin ointment under medical supervision.

5. Tinea Pedis (Athlete’s Foot)

Tinea pedis may result from fungal infections, damp environments, or poor ventilation. After using Zuguang Powder, the keratolytic effect of the medication may accelerate shedding of the stratum corneum, resulting in extensive white peeling on the feet, often accompanied by itching and scaling. Patients are advised to follow medical instructions and use antifungal treatments such as compound miconazole nitrate cream, bifonazole cream, or ketoconazole shampoo to relieve symptoms.

In daily life, it is important to keep the feet dry and well-ventilated, change socks and shoes frequently, and avoid prolonged soaking in water to prevent infection.