[sillylupie]

Lynie, I am so sorry to hear about Coco.

The use of steroids (i.e prednisolone) in human is not only for symptomatic relief but also for maintenance and control of auto-immune disorder. (I guess it applies for cats too?).

Coco's condition sounds more like inflammation of tissue and allergies, skins, treatment of antibiotic and steroids (prednisolone) are to cover two possible bacterial and also auto-immune caused inflammation.
Did the vet prescribed any anti-histamine? It can calm and reduce itchiness.
Are her organs (blood, kidney, liver ...) involved?

In human (I believe cats too), autoimmune is normally controlled and managed using steroid. Once the symptons improved or condition is no longer active (remission), its dosage will be tapered down to the lowest possible as maintenance dosage.

Also, it is very possible that the condition will go under remission with proper management.

Lynie, don't worry too much. Cat can sense when human is worried, and they in turn will worry too! (Stress/worry is a big trigger to autoimmune condition!)
Always remember, Cats are very resilient animal, they've got 9 lives!

{{{hugs}}}