Thank you for your medical query at AskTheDoctor.com
I understand your concern.
You got your nose pierced and now 3 weeks later, there is an infection with a small swelling and pus.
Since there is a swelling, this has to be managed with oral antibiotics. Local antibiotics won't be that helpful. I will advise you to contact your local physician who can prescribe you am antibiotic course. A good choice antibiotic would be Tab. Cefotaxime 200 mg twice daily for 7 days-10 days. Locally, Mupirocin ointment has to be applied 2-3 times daily. The area can be regularly cleaned with betadine or povidone-iodine solution to keep it clean and dry.
I will also advise an analgesic like Diclofenac twice daily after food. This will reduce the inflammation and bring the pain and swelling down. Please continue this treatment for 7 days, and update me on whether the swelling has come down.
Hope this was helpful,
Feel free to discuss further,
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.