Betadine and antibiotics

I had my parotid glands washed out with saline and because they were still dirty the surgeon decided to swab them with Betadine. When I came around from the operation I was panicking in the recovery room. Later, I was put into a side ward, luckily with my sister in attendance, and took a minute sip of water. This caused me to choke and I could not catch my breath. Assistance was sought and I was taken away to get help with my breathing. My whole face swelled up and my eyes had huge sort of blisters under them, which affected my sight for about 3 days; my hearing was also affected temporarily. The sides of my face, where the parotid glands are, were absolutely solid, my lips were distorted and I looked like I had been in a fight. My vocal cords were also swollen, which resulted in very poor speech for 24/36 hours. I had to be put on continuous oxygen, and have frequent nebulisers. I was given steroids, antihistamines, antibiotics and other treatments which I am not sure of. What should have been a 45 minute operation and 2-3 hour recovery resulted in a week's stay in hospital. When I was discharged, I had to return the following day, as the swelling had come back up again and I had to have the steroid medication I was sent home with doubled and Piriton and Omeprazole prescribed as well. I had intense pain at the top of my head, over my left ear, at various times during the week, resulting in me having to take Oramorph. All of these effects caused my diabetes to go out of control, with my blood sugars running over 20 for the first 2 days and well over 10 for the rest of the week. All in all I was very unwell.