Under-eye swelling or puffy eyes may indicate an ... A severe allergic reaction may cause anaphylaxis, a medical emergency that causes hives, swollen airways, and difficulty breathing.

Swelling of the Lips, Eyes, Tongue, Throat, or Limbs ...

Hereditary angioedema (HAE) is a rare genetic disorder that causes episodes of severe swelling throughout your body. It is caused by abnormal immune responses. But unlike allergic swelling ...

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