Dog losing hair after Advantix spot-on. Will his fur grow back?

Unfortunately as long as Bella is suffering from flea infestation the hair is not likely to grow back, after the flea problem is solved the fur should grow back fairly quickly, usually 2-4 weeks depending on the skin damage underneath. here is the list of the best flea products on the market. Spot ons: Revoulution Advantage Advantage Multi Frontline (ticks as well) Tablets: Trifexis/comfortis Bravecto (ticks as well) - for dogs Collar: Seresto ( (ticks as well) House spary: Indoorex I have found that in areas with very resistant fleas Comfortis works best and you can combine it with a Seresto collar for extra protection.

There are a few things that can cause this to happen: loss of hair where the microchip was placed (if he has one), reaction to a topical medication like (Bravecto, Frontline, Revolutions, etc), skin mites, topical allergic reaction, trauma.....just to name a few common things. To me this looks like a reaction to a topical product. The reaction does not always happen immediately and can take weeks or months to show up depending on what phase of growth the hair was in when it was damaged. I would not be overly worried but it would be best to have your vet check it out. Hope this helps. Best wishes.

Hi there and thank you for using pet coach to address your concern. I have not ever seen Frontline cause hair loss. However, I have seen Frontline cause reactions on the skin. This is a topical product that you used and anytime a topical product is used it has the chance to cause a reaction or irritation which may include hair loss. You can try and wash the area where the front line was applied with a oatmeal based shampoo and rinse it very well or just wait and see if after 4 weeks the problem still persists. If it continues to spread or does not resolve then I would recommend having a veterinarian examine this so that the most appropriate Diagnostic and treatment recommendations can be made. I hope this helps guide you in the right direction. Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

Unfortunately there isn't anything that can help the fur to regrow. You can try some omega 3 fatty acids or fish oil. If the hairloss hasn't been seen by a vet recently I would have your vet take a look at it to ensure it isn't a thyroid problem or something else. If it is truly just due to the injury, you can put some baby sunscreen on her to prevent any burns if she has light colored skin. Most dark colored skin will not burn. I hope this helps!

Hi and thank you for posting your question on Petco Pet Education Center, formerly Petcoach! It is hard to say exactly what the issue is with Miss Kitty sight unseen, but I can offer you a possibility. If her scratching has subsided after Frontline Plus administration, then it is possible she did have a flea allergy. As long as you continue to use the flea preventative every month to help keep fleas from coming back onto Miss Kitty, her fur should grow back in a couple weeks. :) I hope this has helped and best wishes to you and Miss Kitty!

It might take a long time, don't worry but, if there are not even tiny hair or if it is more than 6 weeks without improvements, consider to bring Music back to your local vet for a check up. In rare cases metabolic diseases (i.e. thyroid disfunction) can increase the length of time necessary for the hair regrowth and a blood test might be necessary to diagnose it. In the meantime make sure Music does not lick the affected area and add to her diet some omega 3/6 that can be find at your local pet shop. Please post again on the forum if you would like to discuss it further. I hope my answer was helpful.

Thank you for using Petco Pet Education Center, formerly Petcoach! If you are noticing a flea infestation and this is the cause for the excess shedding/over-grooming of her fur, then simple treatment and prevention of the fleas and time will allow for her coat to regrow. It is important, however, to understand how Capstar works. When administering a Capstar, this will kill all the fleas on Jackie and those that re-infest her for 24 hours, after which it is no longer effective. It is important to also follow with a preventative treatment, such as Advantage II, that will then continue to kill and prevent the re-infestation of fleas for one month. This is a topical treatment that is applied between the shoulder blades. Another option would be a Seresto collar, which provides flea prevention for up to 8 months. Remember to also treat the environment where Jackie is located (indoors and outdoors) to add another layer of protection against re-infestation. In some rare cases you may notice minimal or no hair regrowth if significant trauma was caused to the hair follicles due to over-grooming, but in most instances adequate control of the fleas and therefore the itch will allow for hair regrowth with time.