If Buddy's skin is not responding to a high quality food and omega-3 fatty acids, there is likely an underlying medical condition at work.Hypothyroidism
- low thyroid levels caused by an autoimmune destruction of the cells of the thyroid gland- can lead to abnormal skin turn over and result in the kind of flaking that you are seeing. Your vet can diagnose this via a blood test. Treatment involves daily thyroid hormone supplementation. This is a fairly inexpensive medication and should be easy to give in a little treat or piece of food.
The other concern would be a condition called seborrhea
sicca. This common in Labs and may be a primary, inherited condition, or a secondary to other issues, such as low thyroid levels.
Dogs with seborrhea characterized by flaking but no oily feel to the coat need weekly bathing with hypoallergenic
, moisturizing shampoos containing emollients, lanolin, urea, or fatty acids such as Aveeno or veterinary shampoos such as Etiderm.
Dogs that have flaking with some oiliness to the should be bathed every 2- 3 weeks with shampoos containing sulfur and salicylic acid because there help remove build up of dead skin cells and are antibacterial, antifungal which helps to control secondary infection. Head and Shoulders, Neutrogena T-gel, or veterinary product Sebolux are useful.
I recommend a vet visit to check for hypothyroidism as a starting point.