While carboxymethylcellulose sodium (Refresh Tears) helps lubricate your eyes, using it for a month without relief suggests a couple of possibilities. The preservatives in multi-dose bottles can sometimes irritate sensitive eyes, causing continued burning. Additionally, the itching you are experiencing might point to an underlying eye allergy rather than just dryness, which standard lubricating drops cannot fully resolve. Please consult an eye specialist. They can safely evaluate your eyes and determine if preservative-free lubricating drops or antihistamine drops would provide you with the gentle, effective relief you need.
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Why are my eyes still burning and itching after using Refresh Tears for a month to treat my dry eyes?