**Neomycin Sulphate** is an **antibiotic** primarily used to treat or prevent bacterial infections. Here are its main **uses**:
# 1. **Topical Use (Creams, Ointments)**
- **Skin infections**: Used to treat minor wounds, burns, or cuts to prevent bacterial infection.
- Often combined with other antibiotics or corticosteroids in topical treatments.
# 2. **Oral Use**
- **Preoperative bowel preparation**: Given before intestinal surgery to reduce gut bacteria.
- **Hepatic encephalopathy**: Helps reduce the production of ammonia by killing bacteria in the gut.
# 3. **Ophthalmic and Otic Use**
- **Eye or ear infections**: Sometimes found in combination drops for treating infections in the eyes or ears.
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# Important Notes:
- **Not effective** against viral or fungal infections.
- **Not usually used systemically** (