What is sinusitis?
By Dr. Karen Fong: Sinusitis is infection or inflammation of the paranasal sinuses (often just referred to as sinuses), which are air-filled spaces that surround the nasal cavity. Most humans have four pair of paranasal […]
By Dr. Karen Fong: Sinusitis is infection or inflammation of the paranasal sinuses (often just referred to as sinuses), which are air-filled spaces that surround the nasal cavity. Most humans have four pair of paranasal […]