Inflamed feather shaft

[@Rosita]

Hi folks,
We're relative newcomers to the fun and rewards of backyard chicken raising and have run into an issue we have not been able to identify online. Any insight or suggestions would be appreciated. Our chicken has an inflamed or perhaps infected wing that started out as minor inflammation of the feather shaft on Sunday that is rapidly getting worse. There is some clear, odorless discharge. The hen is is definitely in distress now. We have tried lancing it with some success, but swelling rapidly returns and increases in size. Right now her wing is getting a warm Epson salt bath. Prior to this she had no issues and has always been a happy camper.
The attached photos show the issue.
Thanks for your time and assistance.

 

[Nimueh Alene]

Looks like a feather cyst . Found this on the internet.

Feather cyst on a bird represents the equivalent of an ingrown hair on a human. Feather cysts are larger in size, of course, since feathers are larger than hairs. The cysts are due to malformation of a developing feather under the skin. They appear as oval or elongated swellings involving a single or several feather follicles. Although they may occur anywhere, they most commonly are found involving the primary feathers of the wings.

A feather cyst occurs when a growing feather is unable to protrude through the skin and curls within the follicle. As the feather continues to grow, the mass enlarges and a cheesy material composed of keratin accumulates.