nail is red, hot, swollen, draining pus, or sharply painful. Those are not “wait and see for a month” signs. If the nail is turning black, green, or lifting rapidly away from the nail bed, that deserves professional attention too.
13. Signs you may need prescription treatment
If the yellowing keeps spreading, the nail keeps thickening, or more than 2 or 3 nails are involved, there is a good chance you may need a doctor’s diagnosis. A podiatrist or primary care clinician can sometimes take a small nail sample to
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