OMG i think its infected, someone help!!

i just got a tattoo yesterday, and its on my inner lower arm and its swollen, red and it hurts like hell. its warm to the touch and im really worried about it. i kept it bandaged for 1 1/2 hours and washed it, put lotion on it and washed it about an hour later, ive been keeping an ice pack on it like my artist told me to, but its still really bad, the swelling hasnt gone down and it hurts bad... anyone know whats going on with my arm???