It's possible for your ingrown hair to get infected, especially if you break the skin. If you have an infection, you need to get proper treatment so it heals. Talk to your doctor if you notice the following symptoms of an infection: Pus Pain Redness Swelling If you have an infection, your doctor may prescribe you an antibiotic. For a mild infection, you'll likely use a topical antibiotic. For a severe infection, your doctor might give you an oral antibiotic. Take your medication as directed so that your infection heals. Don't stop taking your antibiotic until you've used your entire prescription. Otherwise, your infection may come back. You don't need an antibiotic unless you actually have an infection. It won't help your ingrown pubic hair go away. While you're treating the infection, you need to leave the hair alone. Trying to pull it out can make the infection worse. Ask your doctor when it's okay to try to remove your ingrown pubic hair. It's possible that your pubic hair will emerge on its own as your infection clears.

Summary:
See your doctor if you notice signs of an infection. Use an antibiotic as directed if your doctor prescribes it. Don't try to remove the hair until the area heals.