knee

i have what i though was a pimple on my right knee. it seems that i was wrong. it is very swollen and red and very very painful i was wondering if you can let me know what this is

[Vanessa Lacuesta]

Hi

Red bumps that are swollen and painful may be boils. Pain and redness associate with an acute infection. This sounds like an infectious skin condition to me and a boil is primarily in my differential. If this enlarges rapidly ,I suggest that you have this promptly assessed by an internist. You may need to have this drained. The discharge may be cultured to determine the organism and also to guide treatment. You may also need oral antibiotics for this. At this point, apply warm compress 15 minutes 3x a day over the area. Take pain medications while awaiting physician's consult.

Do you have fever?

Can you fully extend the knee joint?