It is normally used on the skin and hair in two to three sessions. The second treatment session should be carried out 7-10 days after the first one. Sometimes a third session may be vital, as recommended by your medical doctor. Follow the directions on your prescription or on the package label cautiously, and ask your physician or pharmacist to provide an explanation for any part that you do not understand.
Use pyrethrin and piperonyl butoxide shampoo as directed. Do not use more or less of it or use it greater often than directed on the label or prescribed by your physician.
Avoid getting pyrethrin and piperonyl butoxide shampoo on your eyes, nostril, mouth, or vagina. Do not apply it to your eyebrows or eyelashes