Hello doctor,I got the influenza vaccination about a week ago and have a swollen and painful lump in my armpit.
Hi, Welcome to Chat Doctor forum. I understand your concern. You are having lymph node swelling axillary post influenza vaccination. Influenza vaccine is a very safe vaccine. Although some may have local pain, swelling, and fever. Some may have local lymphadenopathy. Lymphadenopathy is a swelling of lymph node (normal gland present in our body, which function as clearing harmful substances and providing immunity). Local and systemic reactions mostly began between day 1 and day 2. When a lymph node rapidly increases in size, its capsule stretches and causes pain. Pain is usually the result of an inflammatory process. It is a reactive response of the lymph node to the vaccination. So no need to worry. It can be managed by simple Paracetamol or anti-inflammatory medication such as Serratiopeptidase. It should resolve within a week. If it is associated with fever or any other site enlargement of lymph node you can visit your physician. I hope this helps. Reactive lymphadenitis. CBC (complete blood count), ESR (erythrocyte sedimentation rate), USG (ultrasound) axillary lymph node. Lymphadenopathy. anti-inflammatory Paracetamol 500 mg twice or thrice daily or Aceclofenac, Paracetamol, and Serratiopeptidase combination tablet twice daily for three days. Follow up after three days. 