is not dangerous or even harmful if u take it orally.
No need to worry.It is not like poisoning
so, NO emergency care is required.
You rinsed your mouth several times...that was absolutely correct decision.
In a hydrocortisone ointment a low concentration steroid is mixed up with vaseline, petrolium jelly liquid/ white paraffin
or any other oily substance, but all of them are harmless for any part of body.
On the other hand we prescribe some oral steroids
for many cases for short/ long duration.
There fore everything is OK..nothing serious was happened to you...Please, Relax.
Dr. M M Mahmud(firstname.lastname@example.org)