Sinus Infection
A sinus infection can cause a tension headache in various ways. The first is by causing pressure to build up inside the sinuses, which want to drain naturally through the nose. This pressure can be transmitted to the surrounding tissue around the sinuses, causing pain and sensitivity to touch.
Secondly, bacteria or viruses can directly infect the muscles of the head and face, causing pain and tenderness. And lastly, secondary infections can cause inflammation of tissues in the head and neck, causing pain and sensitivity to touch. For example, gum disease may lead to inflammation of tissues in your teeth and mouth, which would typically cause pain when you eat or chew food.
Instead of treating the primary problem, it is generally recommended to treat the symptoms: over-the-counter medications for headaches, like aspirin; antibiotics for sinus infections; or steroid medications for gum disease. These will help relieve your symptoms without having to treat your underlying condition as well.
