Apply Dr. Müller Ichthyol Shampoo mainly to the scalp, because dandruff and itching usually come from the scalp rather than the hair lengths. Wet the hair thoroughly, massage the shampoo gently over the scalp with your fingertips, then rinse well. Avoid scratching with nails, as this can make an already sensitive scalp feel worse.
Because the formula contains cleansing agents that remove excess sebum and flakes, it is useful to observe how your scalp responds over several washes. If your scalp feels comfortable, you can continue according to the instructions on the packaging. If the hair lengths feel dry while the scalp benefits, apply conditioner only to the mid-lengths and ends, keeping it away from the scalp unless the conditioner is specifically intended for scalp use.
Do not combine several strong anti-dandruff or exfoliating scalp products at the same time unless advised by a specialist, as this may increase dryness or irritation. If you use styling products, rinse them out thoroughly, since build-up can make flaking more visible and may reduce the clean feeling after washing. Stop using the shampoo if you notice strong burning, rash or worsening irritation, and seek professional advice if symptoms persist.