Sinus allergies also cause neck muscle tension and pain that spreads to the scalp, causes lymph nodes to swell and put pressure
on nerves that cause ear and jaw
pain. Allergies can trigger
pain in the face, ear, neck, head/scalp and jaw/tmjd, as well as put pressure on the perotid glands and salivary glands. I've had some triggered by using prednisone to help treat sinus and lung infections.