I am prone to ear infections and possibly have candida in the eustacian tube. Gaia's Ear Oil which has Mullein and garlic works wonders for me. I use it anytime I have ear issues like feeling blocked or clicking and it works.
Do you suffer allergies or is this a random infection?
Try taking orally some Goldenseal/Echinacea tincture in water 3X aday, olive leaf capsules, oil of oregano capsules or even Colloidal Silver . You could also eat as much raw garlic as you could stand. I used to cut it in swallowable pieces and then give a pound with a kitchen mallet and then swallow.
Drink plenty of fluids and do not consume any dairy.