"i had come down with a very bad sinus infection that caused me to have a migraine like headache.  it was extremely unbearable.  so i had my spouse take me to the emergency room and the doctor gave me a shot in the rear and within seconds i felt immense relief.  the next day the headache came back and after eight hours of dealing with it, i went back to the er and got another shot.  it was fabulous and it allowed me the ability to keep down my antibiotic so i could kick the sinus infection.  i don&#039;t know why they don&#039;t make an injection pen for migraine sufferers to keep around.  worked way faster than imitrex ever did for me in the past."