Abrasion or blister: It may just be a mild abrasion that is healing on the side of your toenail. Other possibilities: If you have had an ingrown toenail, sometimes the skin will become very inflamed, forming a granuloma. A blister can form at this area if it has been rubbing against your sock or the shoe. If you are concerned about it, have it checked out.
Answered 1/15/2016
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