7Antihistamines
If you are suffering from chronic sinus headaches caused by allergies or infections, antihistamines can be an effective treatment option. These drugs would ease nasal blockage and improve the symptoms. Some common options include loratadine, cetirizine, or diphenhydramine. However, keep in mind that many of them would lead to some side effects if taken excessively. Therefore, it is important to follow the instructions of your doctor and take the right dosages. They are often available in the form of pills and liquids. [7]
