“Meanwhile, flu typically causes a sudden onset of fever, severe tiredness and weakness, muscle and joint aches, a headache, ...

It's unfortunate but true: It's totally normal for adults to get colds multiple times a year. And each of those colds will tend to follow a similar three-stage pattern, says Dr. Shiv Sudhakar, ...

NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we earn a commission. Learn more. Like acne, a cold sore outbreak can be a frustrating ...