Why is my 7-month-old dog's nose bump getting bigger?

Ouch! That is a concerning sign, especially since the bump is a different color from the regular skin, and is growing in size. Since it's hard to tell what a bump is without an exam and sample (biopsy, fine needle aspirate), it's best to bring Coco into your vet to have it looked at. They can take the sample, check what kind of growth it is, and safely remove it if needed. In the meantime, keeping an eye on how fast it's growing/size, and keeping Coco from pawing at it or rubbing it can help keep it from getting infected or more irritated.

A couple of things come to mind as possibilities. This could be an acute hypersensitivity reaction to something - bug bite/sting, perhaps - or possibility a severe bacterial infection called furunculosis. There are also some immune-mediated/auto-immune diseases that attack the top of the nose. See your vet about this. An appropriate treatment plan might be to start antibiotics and if no improvement after 2 weeks consider a biopsy to obtain a definitive diagnosis.

Since the growth is on the nose, it would be best to bring Quinn into your vet for care. Tumors, fungal infections, abrasions, burns, etc can all cause signs like you are seeing, and since some are more serious issues, should be seen and treated, especially if the area is growing rapidly in size. Your vet can take a scraping or biopsy from the area to check under a microscope and see what is going on.

A lesion like that could be several things including an ingrown hair, allergies, skin mites, bacterial infection or a skin tumor/mass. There are a couple things you can do at home and they can help but they may not address the underlying cause. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing her diet to something like Royal Canin or Nutro as they are aimed at skin health. You can wash the lesion once a day (not her whole body, just the lesion). Also protect the area from trauma by having your pup wear an elizabethan collar at all times. If the lesion does not start improving within a week or if it is getting worse, have her examined by the veterinarian. I hope this helps and please feel free to post any additional questions.

This looks like a mild skin infection or irritation from an insect bite or injury. You can wash it with antibacterial soap, rinse it well and then apply a thin film of antibacterial ointment on it. As long as there are no other spots this should heal fine. The overlying skin may come off and then the pinker skin may be showing until the fur grows back in which could take a month or so. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Mr. Brown.

It is hard to tell from the photo the characteristics of this bump. I would say it is possible it is related to trauma and I would monitor for now but it could also be a tumor (either benign or malignant). My recommendation would be to monitor it for the next 24 to 48 hours, and if it is still there in the same size or it is bigger I would have a veterinarian examin the area. Further testing might need to be considered such as taking a sample of the mass and sending it out for interpretation at the laboratory. I hope this helps guide you in the right direction. Please feel free to contact me with any other questions or concerns you may have

This presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria or fungal infection). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any licking (if any). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!