Hang on - nothing I said can be seen as "throw them in the deep end until they get over it"!

For people with mild symptoms you should do "watchful waiting" if the trauma happened less than 4 weeks ago.

Single episode "debriefing" after a traumatic incident should be avoided.

People should have access to early intervention trauma-focussed psychological therapy

https://www.nice.org.uk/guidance/cg26

(Although this guidance is going to be re-written soon).