My dog has a red, hard bump on his ear. Will castor oil help it?

That does look to be a mass. A mass is a collection of cells and can be benign (inflammation, cyst, some tumors) or a malignant tumor. Given the age of your dog this may be a histiocytoma, but as many skin tumors can look alike the best plan to confirm this is for your vet to perform a needle aspirate for cytology. That way you will know for sure if this can be monitored or if it needs any therapy. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

Thanks for using Petco Pet Education Center, formerly Petcoach! If it truly was not there yesterday, this is most likely to be a bug bite (tick, mosquito, spider, bee, other), dog/cat bite (if he was wrestling with any other friends lately), or some other random trauma (crashing through a spiky bush or catching it on something). If you're unsure how long it's been there, add cyst, benign or malignant tumor, and others to the list of possibilities. I'd slap some neosporin on there twice daily and watch it. If no improvement in 3 days (or if worsening at any time), it's time to see the vet. This goes for any accompanying facial swelling, vomiting, or diarrhea, as these could be signs of serious allergic reaction. Best of luck to you and Lucky!

This may be an abscess, a cyst or a tumor. You should have it examined by your veterinarian, as it is not possible to distinguish these by just looking at a photo. An abscess can usually be treated with antibiotics and/or be lanced, and a cyst can be evacuated. To identify a tumor, your vet may want to do a fine needle aspirate (he takes some material from the bump with a needle and then looks at it under the microscope) to determine whether the mass is concerning.

Thanks for using Petco Pet Education Center, formerly Petcoach! I’m sorry to hear Bella has a bump on her ear. I do recommend all new growths new evaluated by your regular veterinarian to determine if they are malignant (cancer) or not. I would keep your appointment, but if you are very concerned you could call and see if they have any earlier availabilities. Good luck!

It may be a benign growth (sebaceous adenoma) or not. You can monitor it for rapid change or growth and then have Pumpkin seen by your veterinarian or you can schedule an exam sooner. Whichever choice you make, your veterinarian may aspirate the mass to collect samples for pathology and identification. He or she may also surgically remove it and submit it for pathology. If the bump starts to bother pumpkin, place an e-collar (cone) on him to prevent scratching and schedule an exam.

I wouldn't keep applying aloe vera to this bump on Vixi's ear, it won't make it any better. This bump could be a cyst or a benign tumor, and if it keeps getting bigger, I would have her seen by a vet sooner than two weeks to have it examined and diagnosed. If it is a cyst, it will need to be drained sterilely, and it may need to be removed surgically to keep it from recurring.

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Ryder. This lump could be a cyst or a benign growth. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give his vet a call to make him an appointment. I hope this helps!