Does anyone have any experience of this? Youngest son rang me yesterday in some distress as he has been having horrible thoughts, some quite violent and disturbing. He says it has been happening for several weeks now but has come to a head and he feels he can't stop the thoughts coming and he is clearly now depressed and anxious. He has always had issues with OCD, although has never been formally diagnosed. I know quite a bit about some mental health conditions but nothing about intrusive thoughts, so I'm not quite sure how to support him with this. He's off work today (not a teacher) following an emergency GPs appointment yesterday and has been put on Sertraline 25mg for a week, with a view to then doubling the dose - when I asked him if he had thoughts of harming himself, he said he did, but wouldn't act on them because he recognised the impact that would have on his partner and family. There seems to be some disagreement over whether it's better to allow these thoughts to surface or try to suppress them - he's clearly distressed by them, so I have suggested trying to suppress them by deliberately focusing on other things, but I'm not sure whether this is good advice or not.