To put a shower cap while sleeping so that the herbs keep moist and it will work better and also keep your pillow clean. applying. after b4 ,scalp may itchy because demodex try to escape from the treatment. Please do it 14 successive days as advice because 14 days is the life cycle of demodex to ensure that demodex will be decreased and itchiness will reduce please be noted that demodex will not be killed all but they will be controlled and hair health will gradually get better.