In case you do not know, gluten is one the biggest reason of skin allergy in dogs. (usbones.com)
A good diet is also very important when it comes to not only treating skin allergies in dogs but preventing them too. (doghealthinsider.com)
It won't have any effect on the most common skin allergy in dogs — flea allergy, and it's also not very effective in cases of food allergy either. (happytailsspa-blog.com)