For optimal condition of your mouth before, during and after treatments, brush with an extra soft toothbrush and rinse preventively with blue®m oxygen fluid to prevent irritation. Preferably after every meal or at least three times a day or as directed by your treating physician. Rinse for one minute. Spit out the mouthwash again, without rinsing. If you are undergoing intensive chemo for leukemia or stem cell transplantation, for example, you are dealing with long-term decreased resistance. In this case, from a hygienic point of view, it is also important to change your toothbrush every week. Experience tells us that oral foam is also widely used by cancer patients. It helps against continuous metal taste. Never ever compromise on pain or uncomfy feelings.