Histo Calamine Lotion has a combination of medicines that are used to treat allergic skin conditions. It helps to relieve symptoms of allergy. It restores the moisture of the skin making it hydrated and refreshed. Histo Calamine Lotion should be used in the dose and duration as advised by your doctor. Wash your hands before using this medicine. It is advised to check the label for directions before use. It is for external use only. Do not use this medicine more than the recommended dose. Inform your doctor if you have known allergies from this medicine. The common side effects of this medicine include irritation at the application site. If this side effect or any other symptoms which you think are because of this medicine persist for a longer duration, please consult your doctor. Inform your doctor if you are pregnant or breastfeeding or are suffering from any other disease.