I recently had a fall on the ground my dog drug me off the porch I skinned my elbow I washed the wound put neosporin and clean bandages on it then it broke out with pus filled blisters around the scraped area then my ankles swelled now my toes and fingers and wrists and buttox have little bumps and itch really bad and still have the pus blisters on my arm. Also about a week ago my doctor put me amoxicillian what can I be having an allergic reaction to? What can I do to stop the itching I am about to scratch my skin off.