We’ve all done it: You plug your aches and pains into WebMD’s Symptom Checker, see that it could be either “cancer” or “seasonal allergies,” and promptly close out the window and decide to ignore ...

Correction: The original version of this article misstated the symptom checker's original launch date. WebMD, long the go-to for patients turning to the internet for an answer to mysterious symptoms, ...

Painful, swollen glands just below the ear are telltale sign of the mumps. Doctors call this “parotitis,” and it can happen on one or both sides of the face. But fewer than half of the folks who get ...