Do not use if you are allergic to any of the ingredients. Taking other medicines: Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without a prescription. Pregnancy and breastfeeding: It is best not to take any non-essential medication when pregnant or breastfeeding. Ask your doctor or pharmacist for advice before taking any medicine. Possible side effects Like all medicines, Olbas Inhaler can cause side effects although not everybody gets them. May cause allergic reactions such as rash. If you notice any side effect, please tell your doctor or pharmacist.