Why might your ear or ears hurt?

Answer 1

I assume you mean inside the ear canal. There are several common reasons, some that affect children more than adults, and some that can affect any age group.

The ear connects with the Eustachian tube which goes down the side of your neck. Many ear pain problems comes from a temporary blocking of the Eustachian tube.

1. When ear wax builds up it can block the drainage from going down the Eustachian tube. (any age)
2. Allergies can change the pressure between the ear and Eustachian tube and block the tube. (any age)
3. Chewing Gum can make the ears pop and change the pressure between the ear and Eustachian tube. (any age)
4. Grinding your teeth at night can change the pressure between the ear and Eustachian tube. (any age)
5. A change in air pressure, like being in an airplane, can change the pressure between the ear and Eustachian tube. (any age)
6. Ear infections! - especially young children - usually occurs with Strep Throat
   
7. Strep Throat or other throat infection - see #6