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LennyDVM
LennyDVM, Veterinarian
Category: Dog
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Experience:  30 years as owner of a mobile practice treating dogs, cats, horses and other pets.
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can i inject a local anesthetic (1% lido plain or .5%marcaine

Customer Question

can i inject a local anesthetic (1% lido plain or .5%marcaine plain) into my dogs pad on her foot?
Submitted: 6 years ago.
Category: Dog
Expert:  LennyDVM replied 6 years ago.

Neo-predef topical contains neomycin sulfate, isoflupredone acetate and tetracaine hydrochloride. It is useful for minor skin irritation that itches. I would not expect it to have any effect on a growth on a foot pad. It is unlikely to penetrate the cornified pad. Steroids can reduce inflammation, but don't help growths.

 

Lidocaine and other -caines can be injected locally. They should not be injected into foot pads. It is very painful and the density of the tissue prevents distribution. It can be injected under the pad and/or under the skin around the pad.

 

How big is the growth and what does it look like?

 

Hyperkeratosis and zinc responsive dermatosis increase the cornified layer of the pads. The thick pad will crack and form fissures that are painful. The cut surface of lacerated pads can heal without the parts reuniting resulting in a divided pad that can look like a mass. There are a number of tumors that can affect the pad. Mast cell tumors, malignant melanoma and sweat gland tumors are examples. Diagnosis requires analysis of a biopsy. Treatment can be difficult and often requires removing wide area around the mass. The foot has a large blood supply and bleeding can be hard to control. Healing can take a long time and infection is an issue.

 

Are you able to take your girl to a vet to get a diagnosis and treatment options? Surgery may not be the best treatment.

 

Let me know if you have other or follow up questions.

 

 

Customer: replied 6 years ago.
i have taken her to the vet but i don't have the $400 that they want to take it off. the growth looks kind of "scaley or wart like" maybe. it is on the side of her pad but it does ocassionally bleed when she runs around. her activity level is greatly decreasing from it so i assueme it is painful, she even limp sometimes. i have been a surgical tech for 5 yrs and am in nursing school so if it were a person i would know what to do but i don't want to take any chances of injuring her
Expert:  LennyDVM replied 6 years ago.

Does it have a well defined base? How broad is the base (size and narrower, the same as or broader than the free end of the growth?

 

If you press on the pad away from and over the bump, do you get a pain response?

Customer: replied 6 years ago.
i can tell that the base is smaller it has a very round shape to it. there does not seem to be any pain in the rest of the pad, and even if i touch or push on the growth she does not seem too painful, she lets me touch it without pulling away or getting upset. i was wondering about numbing it and maybe tying it off with just a suture ligature and seeing if it will fall off. it is approximately 1cm in diameter at the widest.
Expert:  LennyDVM replied 6 years ago.

You may be able to tie it off without numbing.

 

Lidocaine patches might work. If you try to lidocaine use a very small needle 25g or smaller and go into skin and under the pad. You shouldn't need much (<1cc). Cardiac effects are seen at high doses (less than 1 cc of 1% lidocaine /10 lbs is relatively safe).

 

My bias is to use a vet for the expertise particularly if the unexpected occurs, but I understant the $$ issue.

Customer: replied 6 years ago.
thank you. one more thing if i do take it off should i put something on it like neosporin and keep it covered, and should i give her any oral antibiotics- i have amoxicillin
Expert:  LennyDVM replied 6 years ago.

Scrub first with a surgical scrub and soak. Feet are very dirty.

 

If the base is small, 1/4-1/2 inch, an antibiotic ointment with a high bandage would be OK. You can use a Telfa pad under gauze. Wrap with cling (not tight), pad with a sock or cast padding and cover with vetwrap. Use duct take on the foot to protect from wear and dampness. Use white adhesive tape at the top and tape to fur.

 

Antibiotics are OK, but probably not necessary. Dose for Amoxi is 10 mg/lb bid.

 

If you do this, make sure you have a couple competent helper who can restrain your girl and pass you stuff. Please be careful of your dog and yourself.

LennyDVM, Veterinarian
Category: Dog
Satisfied Customers: 548
Experience: 30 years as owner of a mobile practice treating dogs, cats, horses and other pets.
LennyDVM and other Dog Specialists are ready to help you
Customer: replied 6 years ago.
thank u soo much

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LennyDVM
LennyDVM
Dog Specialist
548 Satisfied Customers
30 years as owner of a mobile practice treating dogs, cats, horses and other pets.