It could possibly be wet fowl pox, which can infect the nares. Wet pox can also infect inside the mouth and esophagus.
Look inside her mouth for lesions, a telltale sign of wet fowl pox. Dry pox lesions are infective and if a scab is picked at on the skin, or fallen onto the ground and picked...
You have picking and pecking going on in your flock. Pinless peepers will put a stop to it. You will need the pliers to put them on or take them off. Here's a link:
https://www.ebay.com/sch/i.html?_nkw=pinless+peepers&_sacat=0&_from=R40&_trksid=p2540003.m570.l1313
I have some questions for you:
How old is your chicken?
What did you give her to get rid of the tapeworms?
What chicken feed are you giving her?
Does she free range on your property or is she penned all the time?
Here's where you can purchase Albendazole, same as Valbazen which is not marketed as Valbazen no more. It is marketed as Albendazole.
Unfortunately it has gone up in price, like everything else.
https://horseprerace.com/albendazole-oral-liquid-for-horses-cattle-sheep-500ml
Use Equimax horse...
By the time you see worms in feces, damage has already occurred to intestinal lining. Worms slowly suck the life out of chicken. They are reproducing and their eggs are excreted onto the soil.
Birds constantly peck the soil, pick up the eggs and are swallowed, starting the worms lifecycle all...
I've dealt with Fowl Pox, mosquitos are the main vector. It is a virus and slowly passes through your flock. You can put iodine on the scabs and they will shrink, avoid the eyes.
Birds will stop laying and become irritated and grouchy. Dont forget that there is less daylight heading into the...
Please read post #2 & #4 in this link. It explains how to orally worm chickens.
https://www.backyardchickens.com/threads/worms-in-chicken-poop.1575508/#post-26765905