What Causes a Cold Sore? Factors can include injury or stress.
Recognizing COPD. Possible symptoms of chronic obstructive pulmonary disease.
Pay Attention to Air Pollution. Avoid outdoors when air quality is poor.
Easing Baby's Nasal Congestion. Use a cool-mist humidifier.
When Wildfires Are Near. Suggestions to avoid smoke inhalation.
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