Is there any treatment for heavy body pain, unable to think and raised temperature in body after ?

I am facing bodily pain, joint pain, unable to think, raised heat in body and sleepiness for 7 days after . These symptoms gradually reduce after 3 days and become okay after 7 to 8 days. These symptoms indicate POIS (Post ic illness Syndrome) as per an article in www.nakedscience.com. Do anyone know treatment for this problem? Thanks for your help what you are going to say.