That constant scratching can be a symptom of underlying allergies in your doggo. Common allergens include outside substances, like ragweed, dust mites, and mold spores. Food sensitivities can also be a reason; look https://www.amazon.com/Vet-Treat-Allergy-Relief-Chews/dp/B0FRP4L4QM?maas=maas_adg_894B7C098E74968BC7288FE8E1711E0F_afap_abs&ref_=aa_maas&tag=maas