I had the exact same thing bro, I was very carefull and wiped everything before injecting. It was the first time I injected 500mg of test e in my body anywhere. I injected in my left quad in the right location, but by the end of the night I could not walk anymore and the pain was concentrated around the knee, it was warm to the touch, and slightly red, and skin felt tight. My quad was swollen by about 1 inch.
- Take tylenol every 4 hours
- get a pain killer if you can
- I wrapped my leg to keep it warm
- rub some anti-swelling gel
- soak in hot baths several times a day
it took me around 4 days before I could start walking(limping) around again and about 7 days before I could do light cardio on the leg again...best of luck