i forgot to add that i also fell very nauseous
Hi clean area and apply an Antiseptic Cream twice a day , knees do take longer to heal , but if you have knocked it and done damage please get it Xrayed ASAP , take care ,
If there is leg swelling and redness from a rugburn there is the liklihood of an infection. These do not resolve on their own. See a physician. You will likely need an oral antibiotic. An x-ray will be meaningless. You have to be careful because there are many nasty new bacteria out there that cause big problems.
I should differentiate between a knee INJURY, involving a blow to the knee and a RUGBURN, which is due to a scrape. Generally, if you fall on a knee or twist an ankle the drill is cold packs and wrap with circumferential ACE bandages immediately, before swelling takes place.