This a was medically reviewed by Omid Mehdizadeh, MD, otolaryngologist and laryngologist at the Pacific Neuroscience Institute's Pacific Eye, Ear ... antihistamines, then antihistamine eye drops ...

an over-the-counter nasal decongestant or antihistamine can reduce inflammation and open the Eustachian tubes. If earwax buildup is the issue, over-the-counter ear drops or warm olive oil can help ...