 <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]  to use ketoconazole topical Wet hair and scalp completely with water. Apply enough shampoo to produce enough lather to clean hair and scalp. Massage gently over entire scalp. Rinse hair with warm water. Repeat this process if directed to do so by your doctor. Dry hair thoroughly after the final rinse. If using the over-the-counter strength of the shampoo (1%), apply the shampoo, lather, and rinse thoroughly. Repeat this process. Dry hair thoroughly after the second rinse. If treating skin other than the scalp, wet the skin and apply the shampoo to affected area and the surrounding healthy skin. Lather and leave in place for 5 minutes, then rinse off with water. Dosage, number of applications, and the length of treatment depends on the strength of the shampoo (2% or 1%) and the condition being treated. Carefully follow your doctor's instructions or the package directions. Avoid contact with the eyes. If the shampoo gets into the eyes, rinse thoroughly with water. Do not begin using the shampoo if your scalp/skin is broken or swollen. Inform your doctor if your condition lasts after 2-4 weeks of treatment or gets worse at any time.The side effects of Ketoconazole Topical: This medication may cause </s>