I Received As Sting Yesterday Late Morning While Four Wheeling

I received as sting yesterday late morning while four wheeling I immediaty scrapped the area with a credit card to make sure the stinger was out It appered to be but it burned yesterday like I burned myself one te stove/ I keep waking up during the night as now it itches really bad Ive tried corotzone 10 benedryl, phellps napa soap I have Parkinson and am having a hard time typing Please advise