Treatments for itching ear canals include hydrocortisone ointments, watered-down rubbing alcohol and hydrogen peroxide, according to Healthline. Specific treatments can vary depending on the underlying cause. For example, itching due to swimmer's ear may be treated with swimmer's ear drops, while itching due to infection may require antibiotic treatment.
Itching caused by earwax buildup can often be treated by cleaning the ear canal with glycerin or mineral oil drops, explains the American Academy of Otolaryngology - Head and Neck Surgery. If the itching does not respond to home treatment, it is important to consult with a physician. Additional symptoms of ear wax buildup or impaction include pain, ringing in the ears, coughing and hearing difficulties.