Can I use a Polymyxin B Sulfate & Trimethoprim Ophthalmic (sulfate) Solution if I m allergic to Sulfa/Sulfa Drugs? (I m not sure if this is relevant, but I m also allergic to the Sodium Laureth Sulfate in soaps and shampoos)... I have an infection in my left eye and it really hurts/burns!! I took my 4 year old son in to see his pediatrician last week because he had all of the signs and symptoms of pinkeye. Well, he actually had strep throat AND an infection in both of his eyes. The doc prescribed penicillin for the strep, and the Polymyxin B Sulfate/Trimethoprim Ophthalmic (sulfate) Solution for the infection in his eyes. Fortunately, his eyes got better on their own! Unfortunately, I now have it! Any help, advice, or suggestions would be greatly appreciated!! Thank you, Casey