it is very sad when you place
your trust
in someone and they let you down.
Regarding the question about the sponges causing cancer...it is highly unlikely. It is theoretically possible that the foreign body has weakened the immune system and therefore increased the risk of cancer but that is not likely.
As far as treatment of the lung mass is concerned, you are welcome to try Essiac tea however the industry has tried to show proof that it works and simply put, it does not.