Hi L.,
Is it itchy inside or outside? If the itching is in the ear, with or without a sense of fullness, you could just have some minor congestion, in which case an over-the-counter decongestant, such as sudafed, can clear it up in a few days. Antihistamines can also help, but they can leave a dried residue of mucous, which can then serve a medium for a secondary infection.
If you're having pain with or without fever, you could have an ear infection. It would be best to go see a doctor and get a proper diagnosis from someone with actual medical training who can see what's going on -- not from a bunch of untrained moms who should not be trying to diagnosis a problem based only on past personal experience.
If the itching is external and it's been going on for days, it can stem from the benign, such as an allergic irritation, dry skin, sun burn, or a minor bacterial or fungal infection, to the potentially more serious, such as an irritated nerve, TMJ, basal cell carcinoma, etc. Again, before you start applying random creams and home remedies, it would be best to see a doctor if you suspect something beyond something minor. Since none of us has or can see the irritated ear, no one's really in a position to offer meaningful advice.