Fowl Pox or something more sinister

[Patti in TX]

2 or 3 of my 7 mo Buff hens have this on the beaks...this being the worst one. My oldest at year or so has the black spots on her comb but not the growth on her beak.

 

[Eggcessive]

The spots on the comb may be a slight case of fowl pox, but the other lesions around the beaks look more like canker. FishZole (Flagyl or metronidazole) 250 mg given orally once a day for 5 days is the usual treatment. I've never seen it, except in pictures. I would also look inside the beaks of your chickens for any yellowish gray patches. Here are a few links to read, plus the one below:
https://www.backyardchickens.com/t/340720/has-anyone-seen-this-beak-malady-before
http://forum.backyardpoultry.com/viewtopic.php?f=5&t=7984614

Sinus canker

Oral Canker

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Oral Canker is a condition which can be found in a wide variety of birds and most commonly in pigeons.
Causes

It is caused by a motile protozoal parasite called Trichomonas gallinae.
This parasite can cause caseous lesions of the mouth, pharynx, oesophagus and in certain circumstances, further down the digestive tract. These lesions can become extremely extensive.
This causes the birds to stop eating and drinking, in severe cases the extensive nature of the lesions combined with not eating and drinking leads the chickens to die.
Diagnosis

Diagnosis is often based upon clinical signs but wet smears can be examined under the microscope to confirm clinical suspicions. Speak to your vet.

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Treatment

The treatment traditionally involved the use of a drug called Dimetridazole, however, this drug is no longer available or licensed for use in the UK.
The affected chicken in these photos was treated with Metronidazole, this is a UK licensed medication but is not used in poultry therefore it had to be prescribed under the rules of the Veterinary Medicines Directorate cascade. This also means that any eggs the chicken may lay during treatment and for a specified period after treatment would need to be discarded. Her eggs must never be sold for human consumption. The owner of the hen was extremely pleased with the outcome and has supplied us with plenty of photos to monitor the hen’s progress.

 

[Patti in TX]

Thanks, eggcessive! She has no other symptoms except the growth but I can only catch up with her at night when she roosts so I'll check her mouth tonight. After what I have read. I hope its fowl pox