About four months ago i had a severe sinus infection, and even though most of the symptoms have gone away i still suffer from plugged up sinuses. Even though most of the time i can breathe through my nose with no problem; when i get into the water and dive under the surface where there is increased pressure i am unable to equalize which makes it almost impossible to be in the water. This might not seem like too big of a deal, but i am a lifeguard at a beach in souther california and i am also an avid surfer which makes this problem almost unbearable.

Optional Information:
Male , Age: 20

Already Tried:
Just over the counter sinus relief meds.