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Runny Nose

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A runny nose happens when your body produces too much mucus to clear out viruses, bacteria, or other particles in your nasal passageways. A runny nose is a common side effect of cold viruses as well as allergic reactions.

A runny nose can be a side effect of the following breast cancer treatments:

Managing a runny nose

If you have a fever, sinus pain or nasal discharge that's bloody or green- or yellow-colored, you may have a sinus infection. Ask your doctor about medicines you can take to treat the infection.

  • Blow your nose gently — don’t strain yourself.
  • Use soft tissues when you blow so your nose doesn't get red and raw.
  • Apply petroleum jelly to your nostrils to help prevent irritation.

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