Like a topical salve, CBD patches are designed to be applied to the affected area of pain. Tahoe CBD are not big fans of the CBD patch, and here is why the patches only come in certain sizes. What happens if the patch is too small for the area that has pain? We feel that patches are sort of a gimmick, it makes more sense to simply apply a salve to the affected area so you can treat the whole area that is affected. Also, patches don’t work very well for anatomical parts that need to move during the day for example knees, elbows, fingers, ankles, and so on.