[anonymous]

Regarding the skin issues, I would make an appointment with a veterinary dermatologist.

/forums/topic/hes-got-good-and-environmental-allergies/#post-113364

Regarding the “hip problems” have x-rays (hips/spine) been done to rule out hip dysplasia and other anomalies? Don’t assume it is age related arthritis until other causes have been ruled out.
Swimming is the best for dogs with arthritis, also good for weight management.
In fact, if you have pet health insurance hydrotherapy may be covered as a prescribed treatment.
/forums/topic/hip-dysplasia/#post-117881

The supplements mentioned are okay, but they are not medication.
If you want to get to the root of the problem often a specialist is indicated and/or more testing $, otherwise the vet has no choice but to recommend bandaid remedies.