@128128terry11t , you can rinse your equipment in tap water that has been boiled,. Boiling it kills the organisms that are most likely in your pipes and made you sick in the first place. I periodically soak my neb cups and mouthpieces in vinegar after I have washed them with warm soap & water. As for the shower heads, I think I saw that they needed to 2 micron filter to be effective. I have that info saved somewhere, I will try to find it again. You can also tie a baggie with vinegar in it onto your showerhead and soak it to kill bacteriums in there. Baths are advisable over showers. Gargling after inhaled meds is always a good idea, especially meds that contain steroids; as it can cause thrush, a yeast that can grow in your mouth and other areas. I do not know about amikacin, I am sure you can ask a pharmacist or google it. Or maybe someone on this forum can answer this question.