My Miniature Schnauzer has a recurring anal gland problem. We have him groomed about once a month or so where he has his anal glands cleaned out, but he seems to begin having problems again about every two weeks. He will continually lick until he saturates anything that he is lying on and the odor is unpleasant. Is there something that can be done to help alleviate or eliminate this problem? I am not sure what causes this; is it dietary or just something that a particular dog may just have to deal with on a continual basis? I have never owned a dog before and want to make sure he is as comfortable as possible. Any help would be much appreciated.