Irritating Knee pain?!

I play sports consecutively almost everyday.. I hurt my knee one day but I ignored it and played even more sports.. Just some days ago I felt my knee collapsed on me.. It was hard for me to walk and I felt that my knee was loose.. The next day it felt good but with the same irritating pain.. Now, I'm taking a rest for about a week because I have a big football game coming up.. My knee doesn't really hurt that bad.. I just have this irritating pain at the back-right side of my right knee.. How long would it take for a knee injury to fully heal.? Health Question & Answer

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