I had 2 very bad experiences following 2 injections. After the first bad experience, I don't think I managed to explain very well what the problem had been - pain, grittiness, unable to keep my eye open, extreme soreness and stinging for 24 hours - or the medic I spoke to didn't ask the right questions.
After the second time, with a worse reaction, I was more insistent (also brought my son in with me!) and felt that the registrar really listened to me and made sure the person administering the injection heard what I had experienced.
This time it was clearly explained which antiseptic would be used to clean my eye, and that an antibiotic would be used at the site of the injection instead of iodine. They told me that it was a question of eliminating the things that caused the problems I had experienced.
This time I had no problem at all. Indeed, I was so ok that I forgot to use the antibiotic drops I was given and all was fine.
As I now know that allergic reactions happen the second time around I hope that, even if I have a reaction the next time - gradually, the medications administered will be cleared for use on my eye.
Making myself heard and being listened to in our very busy, rather procedural, NHS has made an immense difference to my experience of this treatment. I now feel that I can have some control, as well as receiving a treatment that could save my eyesight.
I can only say to anyone who is feeling doubtful or fearful - try to explain, as well as you can, what the experience is like for you, and someone will listen and react to your problem.