Why is my Frenchie getting raised bumps and losing fur on his back?

This is probably caused by an allergic reaction. first of all make sure you de-flea Biscuits regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or apoquel in order to stop the allergy.

Small bumps like this on the skin are usually a sign of a bacterial skin infection called pyoderma - this can occur on its own, or due to an underlying skin problem like allergies or skin mites (mange). You can try bathing her in a chlorhexidine dog shampoo to see if this helps. If not, or if the bumps seems to be spreading or if they become itchy or painful, it would be best to have her examined by a vet. He/she can do a simple test called a skin scrape to help diagnose the problem and get her started on appropriate medication to treat it.

Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing his allergies so that they can be treated or the specific allergen avoided. A secondary infection is likely and also needs to be addressed. There are medications such as Apoquel or prednisone which may help with the itch. 

 There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. 

Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). 

If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests.

 Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

This can be caused by various reasons such as fleas, mites ,fungal infection, bacterial infection and allergies. the first 4 needs to be ruled out before we start treating for allergies. in order to do that first de-flea him with a high quality flea treatment such as advantage spot on, if it doesn't help - take him to the vet in order to check for/treat the other possibilities. If everything is ruled out, then an allergy treatment can be started. Usually an hypoallergenic food is a good way to start together with anti histamines. if it doesn't help - the best solution is a medication called Apoquel which treats allergies with great success and without side effects

Thank you for posting your question. I see Otis is a 1yr old French Bulldog and the pictures seem to show several red bumps on his abdomen. Where I practice we do see quite a few French bulldogs with environmental allergies. However, that being said there are multiple causes for the bumps that you are seeing. One possible explanation could be a simple environmental allergy. I see that your veterinarian had started Otis on topical shampoo therapy along with oral antibiotics. This is a good approach, and sometimes this can take some time to get results for the problem to resolve. It does appear based on your pictures that Otis may have a skin infection. The topical shampoo and antibiotics will typically treat this. However, sometimes you have to switch to a different antibiotic and shampoo if it has not resolved with the instructed course of treatment. Also, being 1yr old, skin mites such as demodex and Sarcoptic mange (as you have already mentioned) may also be the culprit. If a skin scraping has not been performed, then I would have your veterinarian do this as the current medications will not treat mites. I would also recommend fish oil (such as welactin), dermoscent essential 6 spot on and duoxo chlorhexidine and PS combination shampoo all of which can be found on Amazon.

It could be a pyoderma (skin infection). See your veterinarian for an exam. He or she may diagnose bacterial or fungal skin infection and can prescribe the appropriate medication afterwards. Treatment may be topical, systemic or a combination. Consider adding an essential fatty acid supplement, such as DermCaps or EicosaCaps, to her diet to promote healthy skin and coat. Place an e-collar (cone) on your dog if she is licking or chewing excessively.

Thank you for submitting your question regarding Kevin. I recommend that he sees a veterinarian. A fungal infection such as ringworm or an overgrowth of mites known as demodex can both cause the skin to look this way. His veterinarian will likely perform skin tests to determine the cause of his symptoms. Then treatment can be started. I hope this information helps!