Colloidal silver may also be beneficial for people with eczema, psoriasis, acne and other similar skin condition. Colloidal silver-based nanogels can soothe scrapes, repair tissue damage, and be a helpful dressing for various skin wounds. (22) Sinusitis. Colloidal silver may be effective for people with sinusitis. Mar 20, 2017 · A common concern with colloidal silver is the possibility of argyria, a rare condition in which silver exposure causes patches of skin to turn blue. Most cases of argyria are caused by people ingesting enormous quantities of a homemade mixture of silver sulfide and silver selenide over a period of years. And I mostly use colloidal silver in homemade soap, so there is not much that gets absorbed into the skin once it is rinsed off. Forms of Silver to Avoid There are some forms of silver that may be harmful: silver nitrate, silver citrate, silver chloride, and mild silver protein. How to use colloidal silver Colloidal Silver may be taken orally, topically, vaginally, anally, atomized or inhaled into the nose or lungs, and dropped into eye or ears. DOSAGE: Take the colloidal silver orally by placing the recommended dose under your tongue for at least 30 seconds, then swallow. You can find colloidal silver in liquid form, which is best consumed when you are suffering from pneumonia, colds, flu, sinusitis, and other upper respiratory infections. But when it comes to skin disorders such as eczema, psoriasis, and acne, you’re better off using colloidal silver soap.