Anyone taking antimalarial drugs to prevent malaria who develops a fever or flu-like symptoms while taking the medicine or within 2-3 months after traveling to an area where malaria is common should call a physician immediately.
Treatment of knee pain depends on the cause of the knee pain. If you have been working on your knees all day then potentially rest and anti-inflammatories such as ibuprofen can help. If the cause is trauma and there is possible joint damage then you should seek medical attention.
The doctor usually applies a splint from the ankle to the groin to immobilize the sprained knee. It is helpful, as continuing care, to use an ice pack 3 or 4 times a day for 20 minutes at a time. Place ice chips or cubes in a plastic bag. Wrap the bag in a moist towel, and place it over the injured knee.