I am not sure there is such a thing as too much nebulizing with CS with the possible exceptions of doing it several times a day for many days on end or perhaps doing too much of it when you already have way too much liquid in your lungs (such as when they lungs are filled with liquid in instances of bad cases of pneumonia). What you have reported that you do does not appear excessive at all.
Are you using anything else besides colloidal sivler? A better nebulizing mix is 5 parts colloidal silver to 1 part lobelia extract and 1 part mullein extract. It works even better when used in conjunction with a Chinese herbal formula named ClearLungs Extra. Look the product up and see all the good herbal items it has for the lungs.
Do you take small mainteneance doses of colloidal silver in between bouts to help ward them off? Perhaps it would be a good idea for you to look into some good natural pathogen destroyers and immune boosters. Suggestions:
Immune Boosters
• Echinacea (Forget the flawed mainstream studies!)
• Pau d’arco
• Suma
• Astragalus
• Medicinal mushrooms
• Beta glucans
• Aloe vera
• Alkygycerol
• Lactoferrin
• Bovine colostrums
• Glutathione
• Mangosteen
Pathogen Destroyers
• Colloidal Silver
• Garlic
• Olive leaf extract
• Oil of wild mountain oregano
• Grapefruit seed extract
Also, oleander extract supplements are supreme immune boosters as well as good anti-virals.
No, I don't think it is excessive at all. I think you will stand a better chance of getting rid of the Zithro if you take one or more of the other items I suggested for beating pathogens and boosting your immune system.
Also, here is an article you might wish to take a look at: