Finding a bump under your armpit ... Your lymph nodes can swell due to infections like the flu, a cold, or other illnesses. These swollen nodes can feel like firm, tender bumps. Treatment: Rest ...
Swollen lymph nodes may become smaller on their own without any treatment. In some cases ... A lump in your armpit, neck or other area may not necessarily be a swollen lymph node.
"If you're noticing multiple lymph nodes swollen, not just in the underarm, that makes us think ... may even cause a painful chemical burn. Treatment involves avoiding the irritant and using ...