Why was i put on an antibiotic. for an ingrown toe nail? tried asking the doctor but he seemed in a hurry?

Paronychia: Most ingrown toenails or fingernails get infected very quickly and an abscess (the greenish or white pus) forms very easily. I have never had one of these resolve without antibiotics or surgery.

Secondary infection: Most ingrowing toenails cause a local cellulitic reaction in the surrounding tissues that needs to be cleared of infection prior to the removal process.