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.
Plugged ears can be caused by rapid changes in ambient pressure. This is, again, a result of the auditory tube. Along with the eardrum, the auditory tube helps to equalize the pressure between the middle ear and the outer ear. This is why your ears can feel plugged when you are driving up a steep mountain or taking off in an airplane.