People have lymph nodes, commonly called lymph glands, throughout their bodies. Swollen lymph nodes can be a side effect of COVID-19 vaccination or a symptom of the illness. Share on Pinterest Smith ...
Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny nose, congestion, coughing, wheezing, ...
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