according to the healthwise handbook you should:

apply heat to the ear to ease the pain. Use a warm washcloth or a heating pad set on low (don't leave a child alone with a heating pad)

rest. let your energy to to fighting the infection

increase clear liquids

take acetamenphen as recommended on the bottle
oral nasal decongestants may help relieve earache paine. Avoid products that contain antihistamines.