<s>[INST] I injured my knee on July 2, and now there is some fluid on the anterior part of my knee. It aches a little when I am on my feet for long periods of time. Is there any way to treat it w/o going to the dr s office? I have been wrapping it and taking ibruprofen [/INST] You can try using hot pack for 10 to 15 minutes and post that apply some pain relieving ointment repeat this two to three times a day.  As well do simple knee exercise like in a long sitting position legal straight press knee down or tighten your knee and front thigh muscles hold for 5 seconds and relax.  If it relieves with this great but of not then you need to visit doctor for proper treatment management. I Hope it was helpful to you.  Take care </s>