The situation for many is they don’t realize that love is around them all the time, as are loving energies to heal them. Respiratory ailments occur when you don’t feel loved.
So, first of all, feel love as much as you can. Breathe it in. This will help you any time of the day, throughout the day as well as into the sleep state.
Then, when you are in bed trying to sleep, just step a bit sideways in your thinking, then see yourself taking medicine. This can be done without thinking too hard about it. Just thinking about medicine will help. As you settle into a more relaxed state, you will be provided an image, sound, or color of some kind for you to focus on. It may even be in the form of a medicine, but not necessarily.
Take a shot of the medicine by allowing yourself to feel into the image, sound, or color. Allow it permeate your entire system. By doing this, you will be signaling to your system that you welcome the healing that science may call a placebo, but works in every way to calm your system and heal it. The science of consciousness will bear out that this is an actual delivery in consciousness of healing medicine you need.
Then fall asleep with the warmth of healing in your system. Your body, mind, as well as spirit will all benefit from these practices in support of your immune system.