A family member of mine has recently been suffering from severe anxiety/panic attacks and I don't really know how to help them the best.

They say they just get overcome with a constant feeling of dread at times and I sometimes struggle to emphasize with them.

As far as I know they've never experienced something like this before. (at least not as severe anyway) 

They have talked to a doctor (over the phone, thanks COVID) and the doctor gave them some medication I think the medication is similar to Valium? not sure though. The doctor prescribed them with a small amount just to see how they get on with it.

And that's pretty much it... So is there anything I can do to help them overcome whatever the hell is wrong with them?

Any advice is appreciated cheers.