2. Fevers are Common
WebMD says that sinus headaches can often lead to a fever, which is not as commonly the case for other types of headaches. “If a sinus blockage, such as an infection, really is the cause, you’ll likely have a fever,” it explains.
While migraines and tension headaches are often mistaken for sinus headaches, you should let a doctor sort out the cause, it notes. But as we mentioned before, even having a sinus infection diagnosis doesn’t mean you have a sinus headache – but having a fever might help a doctor make the distinction.