Precautions
It is important that your doctor check your progress at regular visits to make sure that this medicine is working properly and to check for unwanted effects.
Tell your doctor if you notice continued itching, redness, or burning of your scalp after you apply minoxidil. If the itching, redness, or burning is severe, wash the medicine off and check with your doctor before using it again.
Hair loss may continue for 2 weeks after you start using minoxidil. Tell your doctor if your hair loss continues after 2 weeks. Also, tell your doctor if your hair growth does not increase after using minoxidil for 4 months.
Portions of this document last updated: Feb. 01, 2019
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