Suggest Medication For Burning,bruise In Leg And Knot In Shin

possibly had hit on shin while playing with grandkids but not sure. No pain at time of playing. a little while later, had knot on shin, bruise about the size of dime. 3 days later, have intermittent burning in leg and bruising is severe all the way around leg muscle continuing down into bottom of foot. feels better with ice and no throbbing pain. from what I ve read, it doesn t sound like a blood clot but I am not a dr. age 59, male, hypertension, sugar controlled with meds but not insulin injections, high cholesterol controlled by meds.