NSAIDs reduce pain, inflammation and swelling while helping the body return to a normal temperature. When the body is injured or ill, it releases an enzyme known as COX. NSAIDs help control two specific types of COX enzymes, COX-1 and COX-2.
If you have an outer ear infection or a middle ear infection, your ears may be filled with a fungal or bacterial infection. This will likely temporarily affect your hearing and may make your hearing sound muffled in the affected ear.
I think it is due to fluid in the space behind the eardrum (middle ear). This condition occurs when a blockage of the tube that connects the throat and middle ear (eustachian tube) prevents fluid from draining normally out of the middle ear space and prevents air from entering the middle ear.