This condition might be infective, allergic or due to wax. Association with recent episode of nasal complaints / common cold is also not uncommon.
If you use ear buds or anything to clean ears, i would strongly recommended to stop the same. Also instillation of oil or ear drops emperically is discouraged.
Anti-histaminics, analgesics and other drugs can help combat the condition.
I would also like to recommend you for an ENT consultation. Feel free to speak if required.
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