We recommend that lashes are washed daily with Nouveau Lashes Lash & Lid Foaming Cleanser to maintain optimum hygiene. To achieve the maximum results from your Nouveau Lashes treatment, it is essential that you follow the above aftercare advice. Failure to do so could lead to an adverse treatment outcome (e.g., irritation, swelling, lash-damage, etc.). If redness or irritation does occur, apply a damp cotton wool compress. If symptoms persist, consult a doctor.