To relieve headaches accompanied by sinus pain, it is important to first identify the cause of the symptoms. If the sinus pain is due to nasal congestion, using a nasal rinse such as Sinus Rinse or HydraSense can help clear the sinuses. Additionally, over-the-counter medications like Tylenol Sinus or Advil Sinus, which contain a decongestant, can provide relief. It is recommended to follow the dosage instructions on the medication packaging and to not exceed the maximum daily dose. Rest and staying hydrated can also help alleviate symptoms. If symptoms persist for 7 to 14 days or worsen, it is advised to consult a healthcare professional as soon as possible.