Hello all, I have a new silkie I just got last week with 4 others when I got home it was very evident one was sick she just stood hunched up almost like a chicken with coccidia I had started her on corrid then also noticed mites on her so treated her for them but unfortunately she passed now one of the others has bubbles coming out of his nose yesterday morning and this morning he has yellow crust around his nostrils the other 3 seem fine and this one doesn’t act sick so far except they do all have minimally dirty butts the one that passed had a very dirty butt what can I do for the one with nasal discharge and is there anything else I can do for the others as a preventive I do plan on putting diatomaceous on them and in their bedding just in case of mites since I saw some on the one that died but what else can be done? Thanks in advance for any advice. Picture of chicken with nose discharge