Question: Ive had an ongoing ear infection that wont go away. Im waiting to see a ENT and waiting for cultures. Taking clindamycin. Its ear blisters. Could it be MRSA?

Hi. I am a diabetic. The blisters are on the inside of my ear and down into the ear canal. I'm on my 5th round of oral antibiotics. I went for IV antibiotics once a day from February 13 to February 17. I'm not sure of what kind except the one I'm on now which is clindamycin and one previous was amoxicillin with some kind of boost in it to make the amoxicillin work faster I guess. I was on this twice. I was sick in October 2013 with ears, throat and chest infection. This cleared up , but about 2 weeks later I got a boil (?) in my ear. It popped and excreted green/yellow pus. After awhile I developed the blisters. They pop and fill again but the skin in the ear is also an open wound and red and very sore too. The skin around the open sore is turning purplish. The ear infection started in nov. But I also ended up with sores on my scalp and arms and one on my neck. The only one left is on the neck (throat) I also got a bladder infection too. Not sure if all is related but that's everything since my initial sickness. I submitted a second more detailed explanation than my first questions and I attached photos thanks for taking the time

Thank you. my cultures came back and it is pseudomonas aeurgosa (sp?) so with my controlled diabetes I'm on gentamicin and it is finally clearing up. I am taking great precautions too as not to pass this nasty bug on. Thank you for your help doctor. it is greatly appreciated.