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.
A crutch or cane can take the stress off of your knee. Knee splints and braces can also help you stay stable. Do consider acupuncture. This form of traditional Chinese medicine, which involves inserting fine needles at certain points on the body, is widely used to relieve many types of pain and may help knee pain.