My name is ***** ***** I’ve been involved professionally with dogs in the health and behavioral fields for over 18 years. It will be my pleasure to work with you today. Your previous expert opted out of your question though I'm not sure why.
You may be seeing the start of on Canine Oral Papilloma. It is a viral wart. Dogs get them on their lips and chins normally but they can be found between the toes as well. It usually clears up on its own in a few weeks. You can read more about this here:
Sometimes crushing the wart seems to help clear up the wart(s) quicker. Usually we just recommend leaving them alone as much as possible. Of course for bleeding you can disinfect with hydrogen peroxide but other than that, I would just monitor it. As for the benadryl, it should be dosed at 1mg per pound every 8 hours. Giving 25mg to a 51 pound dog won't achieve anything since it is well below an effective dosage.
I wouldn't put aloe on the papilloma at all. Many times sores on the chin are due to a condition called folliculitis (inflammation of the hair follicles). This is generally seen in dogs that are susceptible to staph infections, have mites, or are allergic to plastic or other feeding bowls that the chin comes into contact with. Your Vet will need to do a skin scrapping and examine it to determine if it is due to mites or a bacterial organism. Depending on the results your Vet will prescribe medication and/or recommend switching to stainless steel feeding bowls.
You can read about this here:
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