My long term partner has had addiction to prescription pain and anxiety medication since early this year. He then sought help and tapered down. He relapsed a few weeks ago and has been taking oxy, cocain, Xanax daily at very high doses. He is taking more drugs and higher doses than earlier this year. He has no access to the drugs now and is only on small dose of diazepam whilst we wait for rehab appointment. He is experiencing opiate and cocain withdrawal currently, particularly depression and sucicidal ideation (though assessed by hospital as being ok to just ride it out at home).
I just want some advice on how best to support him, how to ease his withdrawal, should I be with him 24/7, what signs I should look for to know when he needs urgent medical care. His parents are also visiting and I am not sure if I should tell them.