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Chihuahua Skin Problems

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Dermal Distress: Common Chihuahua Skin Problems

Chihuahua scratching

Chihuahua scratching

Chihuahuas are naturally made for cuddling it seems; what happens, though, when your furry friend has skin problems?

Itchy, scaly, scabby, flaky, oozy or smelly skin not only makes your little pup miserable but can also be a turn-off for us as pet parents too.

Like any other dog breed, Chihuahuas can develop dermal disorders that might keep us up at night as they lick or chew incessantly, and skin issues can cause our Chis to become lethargic and unhappy because they’re quite literally uncomfortable in their own skin!

Let’s take a look at some of the common skin problems that Chihuahuas can face, and what your vet might suggest to help your little pup return to health again.

Flea Allergy Dermatitis

This is a very common issue for our canine companions, no matter what their size. Some dogs are highly allergic to the saliva that enters their skin from flea bites, causing a skin inflammation that results in redness, scabbing, and intense itching – not fun!

Even one or two fleas can cause a reaction like this, so prevention and treatment for these pups usually involves consistent monthly flea control that actually kills adult fleas before they can bite your dog.

Because Chihuahuas are tiny and can be sensitive to some types of over-the-counter parasite products, it’s best to check with your vet about which type of prevention is safe to use.


Mange is actually caused by microscopic parasites (mites) that live in your dog’s skin. There are two types of mites that can affect our pups – the Demodex mite, which causes demodectic mange, and the Sarcoptes mite, which causes sarcoptic mange (or scabies).

Mange can either affect just a small area of the body (localized mange) or in some cases, spread over a dog’s entire body (generalized mange). Although the signs of mange can be slightly different, depending on the mite, mange tends to cause hair loss, redness, and sometimes intense itching, crusty sores, or thickened skin.

Your vet will usually perform a simple test called skin scraping to diagnose mange on your Chihuahua, and there can be a few different ways to treat it. You might be asked to use a prescription mange dip or shampoo on your pup, but oral medications or topical drops may be recommended for treatment as well.

For most dogs, treatment usually spans weeks, if not months. For our poor pups that may have developed a secondary skin infection, antibiotics are often part of the treatment plan as well.

Vacuuming, and washing your dog’s bedding and toys regularly are important to help control mange during treatment, and if Sarcoptes (scabies) is diagnosed, a check-up with your own doctor might not be a bad idea, since it can be transmitted to people.

Hot Spots (Bacterial Dermatitis)

A bug bite that’s been scratched too often or a minor scratch that’s given bacteria a major opportunity; can be two reasons why a hot spot can happen to your Chihuahua. Hot spots are red, moist areas, often with oozing discharge or crusts, that usually happens when something has irritated your pup’s skin and skin bacteria has been given the chance to cause an infection.

Your furry friend’s chewing or licking of the area only introduces more bacteria and makes the infection worse, sometimes causing it to spread quickly within a day or two – a really uncomfortable situation for your Chi! Treatment can involve clipping the hair around the area, cleaning the hot spot, antibiotics to control the infection, and sometimes medication like corticosteroids to help control the itching.

Allergies (Allergic Dermatitis)

It’s safe to say that many Chi owners are all too familiar with the distressing effects of allergies. A good number of our petite pups suffer from reactions to substances like grass, pollen, dust mites, and mold; allergies to certain food proteins can be pretty common too.

For dogs and pet parents alike, the chronic problems caused by allergies can be a constant source of suffering, causing red, itchy skin, stained fur from chewing or licking, rashes, scabs, ear infections, and hair loss.

To complicate the situation even more, some dogs do have reactions to more than one allergen, causing a compound effect for our poor dogs!

Allergies can be diagnosed through skin tests, allergy blood tests, or elimination food trials, but for the majority of our furry friends, there’s no actual ‘cure’ for chronic allergies – only management.

Treatment might involve a different plan of action for each dog, including food changes, different bathing routines, medication, and reducing exposure to environmental factors, chemicals, and foods that we know can cause our Chihuahuas grief.

Yeast Infection

Often causing a distinct smell and a greasy feel to your Chi’s skin and coat, yeast overgrowth tends to happen in warm, moist areas like their ears, neck folds, and groin area.

Small amounts of this microorganism normally live on your pup’s skin, but sometimes, if the skin is already irritated or compromised (by allergies or parasites, for example), then yeast can take the opportunity to multiply, causing its own set of problems.

Since yeast is microscopic, your vet might swab or scrape your pup’s skin to check for yeast overgrowth, and treatment usually involves solving any underlying health issues that might be already affected your Chihuahua, as well as medicated shampoos, ear rinses, or sprays to help control the spread of yeast.

Long-lasting skin problems can definitely be a frustrating situation for some Chihuahua lovers, but there are a few other things that you can do as well to help support your tiny tail-wagger’s immune system and skin health.

Feeding a high quality, complete and balanced food helps your dog to maintain a soft, shiny, and healthy coat, as well as a good dermal and digestive barrier against allergens and other irritants, while regular grooming and ear care for your Chi can help you spot problem areas earlier, often making treatment easier on your little dog.

I have also found that adding a little coconut oil to their food helps with dry skin. You can even rub it into their dry skin too.

With the right combination of vigilance and care, we hope your Chihuahua can avoid the discomfort of chronic issues over their lifetime!

female vet holding fuzzy dog

Dr. Sara Ochoa


This article has been fact-checked and approved by Dr. Sara Ochoa DVM. You can read more about her on our About page.


Friday 26th of October 2018

Baby Alex


Friday 26th of October 2018

Baby Alex is a total cutie Diane!


Tuesday 7th of August 2018

my chica is scratching like crazy and rubbing on the carpet. She is mostly scratching her back at the bottom of her tail. Her skin is red and irritated. Any home remadeis, cant aford vet.


Tuesday 7th of August 2018

It's prime flea season now so there's a good chance it's fleas. We have a page with some home remedies for getting rid of fleas here:


Thursday 1st of March 2018

My Lucy has been miserable as I am . She is constantly chewing and has these dark spots and flaking on her lower belly and private area . I’ve tried dawn soap and diluted vinegar rinses, ever put vinegar in her water as I’ve read it helps control fleas but it doesn’t. As soon as I get the money I’m taking her to the vet because my poor baby girl is miserable


Tuesday 17th of April 2018

It’s not flea allergy. It’s food allergy


Monday 16th of April 2018

Hi Liz, your chi’s belly looks very familiar. My chi gets more of them on her back. Vet seen it and nothing. One day I gave her my other dogs food that’s for dog with food allergies. Her skin started to get way better. Her hair even started to grow back. Hill's Prescription Diet z/d in can. Your vet can give you a Rx or sometime they sale it.

I also give my dog Halo vegan formula. Only try Halo vegan after your dog’s system has been detox with the Hill’s z/d food.

I hope this helps you and other.


Friday 2nd of March 2018

Poor baby! She may have developed a skin infection due to a flea allergy. She does need to see a vet as soon as possible. We have an article that may give you some ideas on how to be able to get her to the vet quicker:


Saturday 3rd of February 2018

Hi, chi, is having skin issues too, I put cortisone, I just started with that, about the have a oatmeal shampoo for him, but coconut oil, i can put it all over him, or just the belly?


Saturday 3rd of February 2018

You can put it all over, just rub it in good or he might be greasy. LOL


Tuesday 19th of September 2017

My chihuahua, Leela, has boils in her underbelly, sometimes disgusting growths that look like skin tags. She also started losing patches of hair. See attached picture. Do you think this is allergy, fungus or bacteria? Or whatever it is? I use a medicated shampoo that is antifungal and antibacterial but it does not seem to help. The poor dog looks at me as if begging for help. Please let me know right away. Please?


Tuesday 19th of September 2017

Ouch! Poor little girl, that looks painful. I'm not a vet so I can't really say what that is but it definitely needs to be seen by a veterinarian. Are there any signs of fleas? The smaller welts look kind of like flea bites but the fact that she has those big ones too, makes me think it's something else.

If you can't afford a vet, check to see if there are any veterinary colleges within driving distance. They will often provide treatment for free or greatly reduced charges. You can also see if your local SPCA has a veterinary clinic for the public. Ours does and it's much cheaper than a regular vet. Please, though get her in to see one soon. I think that's the only thing that can help her now.

You could try a cortisone cream like Cortizone 10 or Benadryl cream in the meantime to provide her some comfort.