Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
186 Doctors are Online

What causes a persistent pimple under the armpit?

Jan 2014
User rating for this question
Answered by

Practicing since : 2002
Answered : 7533 Questions
My daughter has had a nasty pimple under her armpit for several months. She has been treating it with melaleuca during that time and covering it with a bandage. Now the area where the sticky part of the bandaid has been is painful, sore and itches. Looking at it this evening I noticed that her lymph node may be swollen in that area. She has been away at college so I have not been aware of this. I had her take the bandage off tonight. We cleaned the area with soap and water and I put neosporin on it. Could all this irritation cause the lymph node to swell? She has been very tired and blah feeling as of late but no other symptoms.

Thank you!
Wed, 23 May 2018 in Skin Hair and Nails
Answered by Dr. Kakkar S. 35 minutes later
Brief Answer:
Oral and topical antibiotics

Detailed Answer:
Hello. Thank you.
I am Dr kakkar (Dermatologist and Venereologist). I have noted your concern.

Perhaps she has a skin and soft tissue infection i.e furuncle. Lymph node swelling is secondary to the skin infection.
I would suggest a course of an oral antibiotic e.g either Amoxicillin or Cephalexin, 500mg, thrice daily for a week. Oral antibiotics are prescription medications.
Topically she may continue with Neosporin ointment, twice daily.
She may also take an oral anti inflammatory e.g ibuprofen tab for symptomatic relief from pain and swelling.


Brief Answer:
You are welcome.

Detailed Answer:
Thank you for writing to us.

Above answer was peer-reviewed by
Share on Facebook
Share on Twitter
Share on Google+

The user accepted the expert's answer

Ask a Dermatologist

© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor