Nah, put Reflex spray on it, take a long warm up, and dont go to high in weights if it really bothers.
This is the time when you tell your body to stop beeing a whiny bitch, since pain is weakness leaving the body.
When i ran a smolov precontest, i had inflammation of every tendon in my arms. I took 4 ibuprofen 600/day to be able to train, put heatpacks before training and icepacks after training. During the intense mesocycle, i had to pour icecold water over the ellbow to be able to do the next set cause the pain was so hard it was affecting my form during squat, and rigidness during bench press. I kept going and improved my benchpress with 15, and squat with 22.5 kilograms in 8 weeks time, whilst dropping the first 10kg of bodyweight.
10 days before contest i had the accident i posted. skin and epidermis were separated over 10x10cm,2 fatpackages were torn entirely in the middle(this created quite the bloodloss), the hamstrings were damaged in 5 different places.
But i could do the squatmotion without feeling additional pain, so whilst damaged, i tought there were no tears in the muscle. And seriously, i wanted to win the total in the upcomming meet.
So 2 days after the accident i went to training as planned and i set a new squat pr wich improved 10kg. This with an upperleg wich was 70% blue of the internal blood loss (the picture are in this thread). I pushed trough, and got second on my first meet, setting the highest total, getting second on points and quite frankly, if i could have done conventional deadlift instead of beeing forced to sumo deadlift (conventional uses hamstrings to much), then i could have won.
Unless its a tear in the muscle, ligament or tendon, unless its a spine injury, there is no reason to sit at home. The only thing to do, is go training and tell that bodyweakness to shut the fuck up and demand gains.