Most likely: Most likely a fungus. You can try an over the counter topical like lamasil. If it doesn't seem like its responding after a week I would see a podiatrist.
Answered 5/28/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
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