Cellulitis

So I have another cellulitis infection in my left arm/hand & across my chest. Went to ER. Waited for over an hour to see doctor. Doctor hardly looked at it, didn't listen to my heart or any of the normal stuff. Then they gave me a Keflex and sent me home with a prescription. Strangest ER visit I've ever had. I'm worried about the implant on the right getting infected. I'm so tired of having to explain my entire history every single time. Now I feel stupid for having even gone to ER.