If your husband has less than £15,000 of debt. He should consider a debt relief order. Google this, it is new government legislation that wipes away your debts for as little as £90 payable to the CAB. All you need to do is ask for an "approved intermediary" at the CAB and they can discuss it with you.
Alternatively if his debt level is over £15,000 then he should consider either an IVA, Bankruptcy or Debt Management.
Frankly debt management takes YEARS to pay off, and unless you can see your situation changing in the near future it is utterly pointless. I see it like parking a car of debt in a car park. You can forget that the car exists for a while (i.e stress management) but its still parked there and aint moving.
IVA - This is a bankruptcy with asset insurance. Therefore, this is the right option for your partner if he has assets he needs to protect such as a house in positive equity, a powerboat, or some stocks/shares/premium bonds/ investments/savings.
Bankruptcy - This is exactly the same as an IVA as they are both insolvency solutions except for people that have NO real assets, they have NOTHING to lose!!! Why pay 5 years worth of payments to insure your assets from your creditors when you have none?
Good luck with this case, I hope this helped. For any information on Debt Management, Bankruptcy or Debt Relief Orders contact me. For any advice on IVA's there are plenty of companies that will sell you this highly profitable debt solution.