My mom's home is about 30 years old and is all brick. It is in Florida. The bricks are white and I guess they were "used brick" as the corners are rounded or at least not perfectly square. Anyway, in some places they are eroding and all that is left is the mortar between them. It is hard to determine the exact cause, as some are where a sprinkler has hit them repeatedly over the years, others are where mold or mildew might be the culprit, but others are just eroding. We have been told that perhaps they weren't Fired at the optimum temperature when they were made...but not sure. Anyway, I am attaching pictures of the problem and would love to have suggestions as to how to go about fixing it. I don't think it is a structural problem, as the house is framed behind the brick..but would like it to not be an eye sore, or obvious mess. Thanks in advance.