Welcome to the Migraine and Headaches Forum! This forum is for questions and support regarding migraine and headache issues such as: abdominal
migraines, headaches caused by allergies, cluster headaches,
headaches, headaches in children, migraine headaches, sinus headaches, tension headaches, visual disturbances.
How old are you?
Have you been able to identify a trigger for your migraine?
The normal dose of Excedrin is 2 tablets in a day and no more unless instructed by your doctor.
http://www.migraines.org/treatment/pro_exmg.htm
The pressure that you are feeling in the nose and face could be due to sinusitis. I would suggest you to take steam inhalation and see if it makes any difference to your symptoms.
If it does not help please consult a physician and undergo a complete clinical examination.