Yes, it is best for you to take a bath before you begin your treatment. This is mostly to clean your body especially the area which is going to be treated. For before the treatment to achieve the best result for you to do is keep your body oil and dust-free. Also after your shower avoid using any skincare products like moisturisers or any other product to make sure you get the best from your treatment. After your treatment avoid getting hot water onto your body as this could cause scars or even burns on the skin.