it sounds like the psora has been awakened by the vaccination, and then run riot somewhat.

your case taking has elicited some useful symptoms.

at this stage you might try approaching the raft of symptoms by looking primarily at the most recent ones that have come up - see what remedy has those in most characteristic grade. you might find it covers the whole case - or its administration might bring another set of symptoms which you can then treat in an orderly way with the then-indicated remedy, and so on, until the child is restored to health.