gander squeaks, shakes head, sneezing

[gary charles]

hi, my 15yrs old gander has lost his honk ! he now squeals, shakes his head, rubs on floor & irrigates in water bucket. all developed in 2/3 wks. tried fluvenet for gape/gizzard worm at first when honk went. now thinking CRD? no vet here interested/no facilities? any ideas on meds or treatment pls, many thanks.