In the early stages of a fungal infection on the feet, there is often just one sharply defined, itchy spot on the sole, with blisters and flaking, which gradually enlarges. (In some cases, there can be an explosion of blisters that merge into large blisters. This is then called pompholyx. In a later stage, a fungal infection can spread across the entire sole of the foot. In long-standing fungal infections, there are no more blisters, but the sole of the foot is slightly red (especially at the foot edges), and there is a lot of fine scaling, especially visible because the skin lines are all colored white. A fungal infection can also occur between the toes, where there is often softening of the skin between the toes, with whitening and fissures. Sometimes it can be very weepy, then there is often a bacterial infection added. Even if the fungus is adequately treated, the softening and formation of fissures can persist for a long time. Treatment then often consists of a short-term treatment with a steroid lotion, and as maintenance treatment, antifungal powder.
Symptoms
Early fungal infections often start with a sharply defined itchy spot on the sole of the foot with blisters and scaling, slowly growing larger. In later stages, the infection can spread across the entire sole, turning the skin light red with significant fine scaling. The skin between the toes can become macerated, whitened, with cracks, and sometimes weeping if a bacterial infection occurs.
Causes
Athlete’s foot is caused by dermatophytes infecting the outer skin layer, particularly in damp and warm conditions. The fungi thrive in sweaty feet and poorly ventilated shoes.
Diagnosis
Diagnosis is made by examining skin flakes or nail pieces under a microscope or by culturing them, which can take up to six weeks.
Treatment
Treatment includes applying an antifungal cream and possibly powder. Severe infections may require taking antifungal pills or capsules.
Self-care tips
Feet should be thoroughly dried after bathing, especially between the toes. Cotton socks are recommended, and shoes should be changed regularly.
Additional Information
Athlete’s foot is usually treatable but can recur. Some people are more susceptible to infections than others.
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