My father have pain in a leg from the top to the bottom is being days already and all he took was advil (ibuprofen) andwhat medication he can get over the counter?

More info needed: More description of his symptoms is needed but if the Pain is in his buttock and radiates down the leg, sciatica is suspected. This is usually caused by pressure on a nerve root in the back by a bulging or ruptured intervertebral disc. Nonprescription pain relievers consist of Tylenol (acetaminophen) and/nsaids like Advil or Aleve. If pain persists he needs to consult a physician for diagnosis and treatment.