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"I have a sore on my finger that looks like a paronychia. It's red, hot, and painful. What should I do?"

In such a case, it is possible to go to the pharmacy and get a cream called Bactroban™ (mupirocin) without a prescription. You should apply the cream to the affected area three times a day for 10 days. If there is no improvement after 5 days, it would be best to consult a doctor.