 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] ruff and other skin conditions (such as seborrheic dermatitis). It is also used to treat certain bacterial skin infections. Sulfacetamide is a sulfonamide antibiotic. It works by stopping the growth of bacteria. How to use Ovace topical This medication is for use on the skin only. Wash the affected area with this product as directed by your doctor, usually twice daily (morning and evening) for 8 to 10 days or. Wet the skin well and apply a generous amount to the affected areas. Gently massage the medication with your fingers into the affected area until a full lather appears. Rinse well with plain water and pat area dry. Avoid getting this medication in the eyes, nose, or mouth, or on the eyelids or lips. If you do get the medication in those areas, wash with plenty of water. How often you use this medication is based on your medical condition and response to treatment. At least once a week, wash your hair normally with regular (non-medicated) shampoo. Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time(s) each day. Do not use more of this medication, use it more often, or keep using it for </s>