My fever getting up and down from last 2 or 3 weeks but i doing my daily activities and i feeling sick .

Question vague: For minor illnesses like a cold, fever and aches go away by themselves. Most people try over-the-counter drugs like Tylenol, Motrin, or Advil for temporary relief. If a person has a bacterial infection, such as strep throat, antibiotics are the treatment. A doctor can evaluate to give a diagnosis, especially if a person has more than minor, temporary fevers, as in this case. Can call Dr. on video.