I’ve noticed these brown scab looking things growing on my toadstool and with a slight brush and blow it came right off of the leather and is discolored and toadstool looks the least happy, I’ve also noticed it’s polyps haven’t fully extended in a couple days... I don’t have a picture of the brown looking scabs that were on it, but I have a picture of what was under the scabs after blowing it away.... any ideas of what it is and treatment?