Intrinsic renal causes are also important sources of acute kidney injury and can be categorized by the component of the kidney that is primarily affected (i.e., tubular, glomerular, interstitial, or vascular). Acute tubular necrosis is the most common type of intrinsic acute kidney injury in hospitalized patients.
1 Soak your sore toe in warm water for 15 minutes 2 to 3 times each day. 2  Wedge a small piece of wet cotton, such as part of a cotton ball, under the corner of your ingrown nail. 3  This will help lift the nail off of the skin. 4  Soak your toe and change the piece of cotton each day until the nail grows out and can be trimmed.
Black toenails are another possible source of pain to the toes. TREATMENT. We must take care of your toenails. Try these tips to relieve pain and eliminate the problem: Soak your feet. Soak your feet in a basin of warm water containing two tablespoons of Epsom salts for 15 to 20 minutes. This will soften the skin and nail.