Thanks for your question.
Do you have any swelling in the knee?
Do you have any previous history of knee pain?
Do you get any locking of the knee when walking?
Thanks for replying.
Large swelling indicates that there has been bleeding in the knee which can be a result of a structure inside knee getting injured.
Knee is a complex structure with many different structures including menisci, cruciate ligaments, plicae etc...Any of these structures could have been injured causing bleeding and swelling.
As preliminary treatment you should ice the knee several times a day for 10-15 minutes each, tie a compression ace bandage and give rest to your knee.
You should also get it seen by a doctor though this is not an emergency and you can wait for few days to have this seen.
For pain relief you may use acetaminophen/paracetamol and /or Advil.
Please reply if you need any clarification.
Do you have any more questions?
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