Function
1.Neomycin Sulphate Mainly for the treatment of trachoma,conjunctivitis,and so on.
2.Oral administration can be used to:
(1) Neomycin Sulphate can used to Intestinal infection.
(2) Neomycin Sulphate can also be used as an adjuvant therapy for bowel preparation before colon surgery or hepatic coma.
Application
1. Neomycin Sulphate is typically used as a topical preparation, such as Neosporin. 
2. Neomycin Sulphate can also be given orally, where it is usually combined with other antibiotics. 
    Neomycin Sulphate is not absorbed from the gastrointestinal tract and has been used as a preventive
    measure for hepatic encephalopathy and hypercholesterolemia. By killing bacteria in the intestinal tract,
    it keeps  levels low and prevents hepatic encephalopathy, especially prior to GI surgery. 
3. Neomycin Sulphate has also been used to treat small intestinal bacterial overgrowth.