I need please

I need help please this is my first time owning a silkie chicken.

Hello my name is leather I have my son here Juno he's a us silkie chicken 1 year to me and my concern is he's start getting sick like he can't maintain he's neck it's always wiggling he sneeze he also have a hard time to eat or to peak and now he can't even stand up and wiggling always it all start when I bath him on April 30 and now it's getting worse what should I do please let me know anything if you guys are expert or have a same experience

Also to mention I live in Philippines and there's no vet around here that takes care of chicken so please I need help.