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.
Hearing tinnitus, noise in the ear is either something due to stress and your brain cannot filter noises out it used to (very simplified) or due to a physical trauma in your ear. The ear got wounded and healed with a scar. the ringing can be the signature of this scar.