Q.christmas cactus
My Christmas cactus has raised bumps on some of the leaves and on two of the leaves the raised bumps seem to have peeled and a colorless dry spot remains ….is it a disease and can my other cactus catch it? Thank you Tricia
I do not have a way to show you

Certified GKH Gardening Expert
Without a photo, it will be very hard to correct. This matches several possible issues. If there is a way that you can provide photos, then I can make better assessment. For now, I can only give you an article that will explain proper care: https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/advice-for-christmas-cactus-care.htm