There are several things you can do to help ensure your dog doesn’t get a lump under its eye down the line. You should always keep your dog on a regular schedule of grooming and exercise to keep his fur healthy and to prevent skin problems such as matting and dandruff from developing. You should brush your dog regularly with a soft bristle brush, which will remove dead hair and fluff to allow air circulation. This will help prevent mats from forming around the eyes. You should also make sure your dog gets plenty of water throughout the day to keep him hydrated. Dry, cracked skin around the eyes can lead to infections that cause lumps.