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Q.

Can sinusitis or allergies cause a swollen lymph node under my arm?

 

Answers From Experts & Organizations (1)

Allergy & Immunology
51 Answers
221 Helpful Votes
19 Followers
A.
Allergies and sinusitis can sometimes cause swollen lymph nodes in the neck, but these usually go away fairly quickly. If you have noticed persistent swollen lymph nodes under the arm, it would be best to have them examined by your doctor. 
   

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Read the Original Article: Swollen lymph node