I am experiencing headache (occurred: 1 - 3 hours) (side: back, left) (better by: rest, nsaids (ibuprofen, naproxen, etc.)) (time frame: gradual onse?

Many possibilities: Most people get a headache at some time, such as from colds, infections, lack of sleep, too much driving, long hours on the computer, stress at work, etc... Over-the-counter treatments include Tylenol (acetaminophen), Motrin, Alleve, Excedrin Migraine, and their generic brands. A bad or increasing headache, recurrent headache, weird headache, or one with other worrisome symptoms should be checked.