Can lichen stains be removed?
yes, I've heard you soak it in vinegar and detergent for 4 hours.
A stained carpet can be a headache for many homeowners an individuals. Carpet stains should be removed as soon as possible - some stains can be difficult to remove if left for a long time. Baking soda can be very effective at removing most stains. A 2:1 solution of water and baking soda can remove most stains.