Hello and Welcome to HCM,
Thanks for writing to us.
Sore muscle and bruise
seems to be related to each other and might be due to the result of muscle strain
. I suggest to take rest. apply muscle relaxant
gel over it . If bruise persisted or other one appeared without a cause, get it evaluated by your doctor.
Hope this helps you.
Wishing you good health...
Dr Saurabh Gupta.