Red, itchy bottoms of the feet: what to know

Athlete's foot often affects the spaces between toes or the sole with scaling, cracking, or burning; it can spread through damp shared surfaces. Tiny deep-seated blisters with intense itch can occur in dyshidrotic eczema. A reaction to shoe materials, adhesives, dyes, insoles, or a topical product may follow the shape of contact. Redness from sweat and occlusive footwear can improve when the feet stay cool and dry. Both feet may be affected, but one-sided scaling or a strong change in the nails deserves examination.

Wash and dry the feet carefully, especially between the toes. Change socks when damp, rotate shoes, and use breathable footwear. Avoid sharing towels, socks, or shoes, and wear footwear in communal wet areas. Do not pick peeling skin or burst blisters. A pharmacist or clinician can advise whether topical antifungal treatment fits the pattern; avoid using steroid cream alone on a possibly fungal rash because it may change its appearance.

Get prompt medical advice for rapidly spreading redness, warmth, swelling, pus, fever, severe pain, deep cracks, or difficulty walking. Seek urgent help if the foot becomes suddenly pale, blue, numb, or severely swollen. Arrange assessment when symptoms involve the nails, keep returning, affect only one foot unexpectedly, or fail to improve with appropriate care.

Ask whether the pattern needs a fungal test, how to distinguish eczema from athlete's foot, which products or footwear may be contributing, and how long to continue a recommended treatment. Mention diabetes, poor circulation, medicines, and any broken skin.