Sorry to hear about Roxie. I would start giving her Cosequin (Regular):
Cosequin: Dog Healthy Joint Product Combines Glucosamine and Chondroitin
for her LP. I would also switch the shampoo to an oatmeal based shampoo either w/aloe or baking soda. Royal Canin has corn gluten meal which some dogs are highly allergic to, so I would switch foods to something w/limited ingredients &/or grain free. We feed Natural Balance Sweet Potato & Venison & they're doing very well on it as many others that have food allergies.
Please do a search on YT about cosequin & royal canin...you'll find lots of info.
