Advice please DH has vertigo

Vertigo is horrible. He’s most likely got his because it sounds like he has an ear infection. It’s an imbalance in the inner ear, and the brain is trying to work out what position he’s in. Every time he moves, it will set it off, but it will settle. I would advise he keeps as still as possible, preferably sitting up. Once the infection has gone, there is something called the Epley manoeuvre which your doctor can advise on. He just needs rest, but it will settle.

It could be Labrinthyitis , I suffer from this, it can come & go with long periods of time with no episode, tablets are available from the Drs but can only be taken to control condition when episode takes place, tablets cannot prevent it happening b
Drinking plenty of water helps .best wishes

If DH has an infection the antibiotics, assuming that is what was prescribed, will take three days or so to start to work. Vertigo is a nasty condition, I've had it several times for various reasons. It does take time and it does seem like it's early days for your DH.

I wish him well.