As of 2015, Excedrin Sinus Headache is widely available in grocery stores, drug stores and even online for those who want to purchase from home. The over-the-counter medication provides relief to those suffering from sinus headaches, according to Excedrin's website.
Sinus headaches cause pain in the sinus areas of the head and face, near the cheekbones, forehead and nose, notes Excedrin.com. Finding relief through an over-the-counter medication such as Excedrin Sinus Headache can be convenient, as the medication is available in a number of different locations. Anyone who has taken an MAO inhibitor in the past 14 days and anyone who is allergic to acetaminophen should avoid using Excedrin Sinus Headache, explains Drugs.com.