Why does my conjonctivitis seems to get worse (itching, pain) when i put polysporin (bacitracin and polymyxin) eye drops?

Chemical irritation : Polysporin (bacitracin and polymyxin) (ophthalmic preparation) may be irritating if used beyond 7 to 10 days, or if you are sensitive to any of the ingredients. Also, you may have been prescribed an antibiotic for the wrong problem, as in viral conjunctivitis or allergic conjunctivitis. Discuss with your prescribing physician your symptoms, as you may need to stop the polysporin (bacitracin and polymyxin) drops and be treated with a different product.