No. Wax may become very hard and the ear may hurt . The hearing loss is reversible . You can flush ear with lukewarm water as long as you don't have a hole in the eardrum or had ear surgery . Do not use a q tip because if there is much wax you will pack it in. If the flush fails, see your ENT right away to get the wax out and make sure it's the right diagnosis.
No. At worse wax leads to only a temporary loss. Once the canal is cleared, hearing is restored.
Doubtful. If the earwax is removed correctly, the hearing issue cause by this should improve.