A rash on the top of the foot usually presents as red or brown and can be attributed to various causes including an allergic reaction, psoriasis, eczema, fungus and diabetes. A rash on the top of the foot can also be a result of an infection called cellulitis. Cellulitis is a bacterial skin infection that can easily spread if not addressed immediately. Rashes on the top of feet may cause pain and discomfort.
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Symptoms
A rash on the top of the feet may be scaly, red, brown, appear dry, have raised bumps, appear as spots or be more diffuse, covering a large area. Depending on the cause, it may be itchy, burn, feel sore, be swollen or inflamed and can feel hot or warm to the touch. Allergic reactions such as contact dermatitis, eczema and fungal infections are likely to be itchy. The skin on the top of the foot is thin and more fragile than other parts of the foot. Scratching a rash can cause a break in the skin which could become infected.
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Causes
Rashes caused by an allergy are commonly caused by a substance, medication, detergent, metal or fabric coming into contact with the skin. Eczema and psoriasis are skin conditions that may be passed down from a family member and can be exacerbated by allergens or injury such as friction. Fungal infections are common on the feet due to the warm, dark and moist environment of socks and shoes. Having diabetes can change blood vessels and can lead to issues with the skin, such as a rash.
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Treatment
Treatment depends on the cause and therefore it is important to know what has caused the rash in the first place. Washing feet daily using a mild, fragrance-free soap, will lessen risk of skin irritation and keep the surface of the skin clean. Applying moisturiser will help ease dry skin and irritation. Anti-inflammatory creams, such as hydrocortisone treat itch and inflammation, which is important for symptom management. If a rash is due to an infection it is imperative to know what kind. Topical antifungals and antibacterials are effective if used as directed and for the right reason. If a rash is persistent or worsens, always seek the advice of a primary care professional or medical footcare clinician to avoid complications.
