Show Notes
For this episode Sue, John & Paul invite the wonderful Victoria (Tori) Robinson onto the podcast - a dermatology specialist based in referral practice in Glasgow. Log this CPD with 1CPD here Intro (00:00) - The Skin Flint team open the episode and introduce the guest for this itchy episode.
Chapter 1 – Summer itchin’, had me aghast... (02:30) Sue welcomes Tori, who briefly introduces herself and her background.
(03:15) Sue asks what would we mean by 'summer itch' and Tori says this can mean a higher level of pollen, but also possibly parasites as there is more agricultural activity happening.
(04:25) John asks whether it is something that all dogs do - itch more as it gets hot? Tori replies that not all dogs should scratch, they may do occasionally but it is about noticing when it manifests into more of a problem with frequency and intensity (e.g. with patches of hair on the carpet or your dog not being able to be distracted from it). Then hair loss or reddened skin can be the next indicators of a problem and an owner should see a vet.
(05:44) Sue asks about brown staining on the coat and how this isn’t necessarily dirt – Tori shares how this is discolouration from excessive licking and can be a marker for a secondary infection such as a yeast overgrowth or bacterial overgrowth which in of themselves are very itchy, and so this discolouration can be an indication there is a problem.
(06:37) Sue asks whether quality of life is affected even if a pet doesn’t get sore from the itching. Tori says how for us it can be really bothersome to have an itch and so it is the same for animals. She says how sometimes it is not until an owner has begun to treat the itch, that they realise how much it has been affecting their pets health; with them becoming less irritable, sleeping and eating better and generally more comfortable. Sue clarifies that without even soreness, the increased saliva staining and scratching would be enough to need to investigate further and Tori echoes this, saying vigilance with your pet is important as this may be more obvious in some breeds than others.
(08:18) John asks what the most common causes of itching would be and Tori mentions this could be related to area or lifestyle, but could also be related to parasite infestation such as fleas, or harvest mites (which are geographically restricted) – or pollens and moulds. So there are lots of geographical things which can be a factor in summer itch.
Chapter 2 - Summer itchin’ happened so fast...
(09:38) John asks if there is anything a pet owner could do at home prior to going to the vet, to which Tori highlights how good parasite control can go a long way to helping the 10-40% of pets who present for routine treatment and have some form of parasite infestation. She also points out not all the parasite products are as good as each other and so it is still worth speaking to the vet to make sure you have the most appropriate treatment. She also points out how bathing the pet can really help to manage summer itch before it starts to wash of pollens and prevent secondary infections.
(10:54) Sue asks what Tori would means with a shampoo – what sort of active ingredients should an owner look for. Tori starts with soothing shampoos – saying they will have things like colloidal oatmeal in which can help with moisturising and phytosphingosine to help with skin barrier function; and all of these types of moisturising agents are designed to help build up the protective barrier the skin forms against things that the pet is allergic to. Tori then talks about the antiseptic shampoos, saying most will contain chlorhexidine when purchased from the vets; she warned against just buying something over the counter, particularly with human shampoos as he’s had a different pH which is not suitable for a pet.
(12:43) Sue asks about antihistamines and oil supplements which she may also buy over the counter and Tori discusses how antihistamines can be very
More from The Skin Flint Podcast
CHAPTER 1 – Rosanna’s 2 Pennies Worth This month, Sue, John and Paul welcome Rosanna Marsella to the platform - Diplomate of the American College of Veterinary Dermatology and Professor at the University of Florida. 03:57 – John invites Rosanna to introduce herself. Thirty years as a veterinary dermatologist at the University of Florida, teaching, researching and treating small-animal allergy alongside some large-animal work; Florida's climate means plenty of infections. 04:42 – John asks how she'd categorise pyoderma. Rosanna explains it's classified by depth: surface pyoderma (often the "hot spot"), superficial pyoderma (essentially bacterial folliculitis), and deep pyoderma, where infection breaches the follicle wall into the dermis (furunculosis). 05:35 – Sue asks how dysbiosis differs from surface pyoderma. Allergic dogs already have reduced microbiome diversity, which shifts sharply toward Staphylococcus during a flare; dysbiosis is that pre-pustular shift, while surface pyoderma is the acute inflammatory skin-barrier damage that follows. 07:45 – Sue asks what AMD looks like clinically. Rosanna describes the classic picture: thick-coated dogs developing intensely pruritic, erosive lesions almost overnight on the face, rump or hips, driven by an acute trigger plus moisture trapped against the skin. 09:01 – John asks how important it is to find the trigger rather than just treat the lesion. Miss it, Rosanna says, and the dog either won't fully respond or will relapse. 09:54 – John runs through the usual suspects - fleas, allergic skin disease, ear disease, trapped moisture, pain, boredom. Rosanna splits these into predisposing factors (thick coat, heat, humidity, swimming) and primary triggers, ranking fleas top: an oral flea product still needs the flea to bite before it works, so a flea-allergic dog may also need a repellent. 13:37 – Sue asks whether lesion distribution helps distinguish flea-driven AMD from other allergies. Rosanna's rule of thumb: the back half of the body is fleas until proven otherwise; facial lesions warrant a work-up for pollen allergy or Malassezia otitis, both intensely itchy in their own right. 17:07 – John asks Sue whether "fleas first" holds in the UK climate too. Sue agrees fleas should be ruled out in every case, even with fast-acting isoxazoline parasiticides on board. CHAPTER 2 – More Than Skin Deep
In this month's episode, Sue, John and Paul welcome Professor & Chief of Service (Dermatology) at UC Davis, Stephen D White to the podcast. Chapter 1: Sheep Skin Detectives (03:09) Sue sets the scope: primary-care perspective rather than rare autoimmune disease. Stephen confirms autoimmune skin disease is vanishingly rare in sheep (pemphigus foliaceus essentially unreported, bar one Barbary sheep case in a zoo). (06:10) Sue asks whether clinical distribution helps localise the cause in a pruritic sheep the way it does in a dog or cat. Stephen explains it's less reliable — thick wool can mask hair loss even with significant pruritus, though rubbing behaviour is usually evident. Lice are visible with a hand lens; mites are not. (08:07) Question on empirical response to treatment. Stephen notes lice usually respond well to licensed ectoparasiticides (mainly avermectins); isoxazolines are unlicensed in ruminants and unreported in sheep specifically (though used in camelids, and anecdotally a bighorn sheep). Repeat treatment at 2–4 weeks is usually needed to catch hatching eggs. Chapter 2: Suspect Number 1 - Ectoparasites (11:30) John asks for top differentials in a pruritic sheep, Stephen answers: “ectoparasites, ectoparasites, and ectoparasites” — mites, lice and sheep keds (which are insects, not mites). He stresses checking in-contact sheep, since one animal may be subclinical while another is severely affected. (13:49) Sue asks why would a referral centre see an ectoparasite case at all? Stephen: usually a failed or incomplete owner-applied treatment, or a backyard sheep simply not monitored closely enough for early signs. (15:29) On technique: always scrape if pruritic, using a medical-grade spatula rather than a blade (sheep are skittish; a slip with a blade causes injury). An otoscope with the cone removed doubles as a magnifier and light source. Dermatophytosis should also be considered — often presenting as facial alopecia rather than fleece loss — and can coexist with ectoparasitism. (15:09) John ask about photosensitisation. Stephen distinguishes hepatogenous causes (impaired phylloerythrin metabolism from hepatotoxic plants, or a genetic defect in Corriedale lambs) from primary photodynamic plant ingestion (e.g. St John's Wort). Lesions favour the head and distal limbs. Flock-wide cases point to an environmental cause (send hay/pasture samples to the local extension lab); idiosyncratic reactions (as seen with clover in horses) may occur but are poorly documented in ruminants. Chapter 3: Dermatological Movie Stars (26:48) John introduces orf, referencing its cameo in Sheep Detectives. Stephen describes it as a parapoxvirus infection, usually self-limiting, but causing anorexia through oral pain — a problem in production settings. A non-resolving “super orf” form causes severe weight loss. Stephen shares data from the retrospective study: of ten orf-affected sheep, five were euthanised, due to generalised cutaneous lesions or concurrent Corynebacterium pseudotuberculosis abscesses — evidence that orf can significantly compromise immune function. One case of orf-associated facial alopecia resolved fully once the virus cleared. (31:07) On zoonotic risk and management: gloves are essential when handling any crusting lesion in sheep or goats. Management includes moistening hay to ease painful feeding, antibiotics for secondary bacterial infection, and parenteral treatment or stomach tubing in severe anorexia. (33:17) Sue asks about bacterial skin disease. Stephen identifies C. pseudotuberculosis and staphylococcal abscesses as the main presentations — often large, anywhere on the body, commonly peri udder in females. Internal abscessation (lungs, liver) is a key concern; aspirated purulent masses warrant involving a large-animal colleague, with caution against environmental contamination during drainage. Dermatophilosis is discussed as globally widespread and rain-associated, presenting dorsally, or interdigi
In this episode of Skinflints, we are joined by veterinary dermatologist Dr Stephen Shaw to discuss the role of JAK inhibitors in managing canine atopic dermatitis. Stephen explains the underlying disease process, highlighting the key cytokines involved in itch and inflammation, and how JAK inhibitors provide rapid, broad-spectrum control by blocking these signalling pathways. The discussion explores how treatment should be tailored to each individual dog, considering disease severity, secondary infections and long-term management goals. Stephen also explains the benefits of using JAK inhibitors during food trials, their role alongside other therapies, and practical considerations such as monitoring, vaccination and managing concurrent disease. The episode concludes by emphasising the importance of evidence-based treatment, informed owner discussions and regular clinical assessment, reinforcing that successful management relies on selecting the right therapy for each patient rather than adopting a one-size-fits-all approach. This episode is kindly sponsored by MSD Animal Health
(00:00:00) John introduces a new episode on Feline Orofacial Pain Syndrome (FOPS) — a baffling condition where cats can flip from calm to frantic self-injury around the mouth and face in seconds.