Sudden numbness on one side of your mouth or face is a 911 call on its own, even without drooping or slurred speech. Here is how to tell an emergency from oral allergy syndrome,...

Most eye discharge in kids is a cold in the eye, and the color of the gunk is a weaker guide than parents expect. What actually matters, what the AAP says about staying off...

Most bloodshot eyes are dryness, allergy or tiredness. A few causes threaten sight within hours, and the thing that separates them isn't how red the eye looks. It's whether it hurts and whether your...

Blurry vision in one eye is usually something ordinary, but a few patterns need care within hours. Here is how to tell acute angle-closure glaucoma, retinal detachment, giant cell arteritis and a warning stroke...

Sudden vision loss in one eye is an emergency room symptom, not an eye appointment symptom, and that holds even if your sight has already come back. Here is how to tell retinal artery...

Dry eye makes the surface feel like sandpaper, and blinking doesn't clear it because there's nothing there to clear. The remedies that work, the ones that don't, and the one situation that needs seeing...

Dry eyes in pregnancy are hormonal, common and temporary, and artificial tears are safe throughout. Why it happens, what actually helps, and the one pattern of vision change that isn't dry eye and needs...

Most headaches respond to water, cold or heat, and rest — no prescription needed. What actually works, the rebound-headache trap almost everyone falls into, and the two dangerous causes that get missed.

How to get out water from your ear safely: gravity and tilt methods that work, the drops to avoid if you have ear tubes, and the pain that needs a doctor.

Yellowing of the eyes means bilirubin has built up in the blood, the liver or the bile ducts. What each pattern points to, the harmless look-alike that doesn't affect the sclera, and which combinations...