@ Ment….I recommend that most folks purchase the professionally made Raven Essential Oil. You can purchase it here:
http://www.living-essential-oils.com/search.php?search_query=Raven&x=7&y=1
Your best bet would be to use it in a cool-mist diffuser, which you can buy here:
http://www.puritan.com/diffusers-view-all-819/mist-spa-vapor-diffuser-034839
In the alternative you can purchase the individual essential oils here, which are the essential oils contained in the Raven Blend: Liberty Natural Products – The Essential Oil Source
Ravensara…7 drops – Eucalyptus radiata…7 drops – Peppermint…5 drops – Wintergreen…5 drops – Lemon…5 drops
@ Ipso…my astro post was about prevention only, colloidal silver is not something that I would consider for prevention purposes. But for sure, have it on hand along with the best lung herb known – Lomatium Root tincture (which should be taken along with Dandelion Root tea to prevent hives).