Many companies pay company sick pay which means the normal wage is paid for a set number of weeks. Those that don�t, will normally pay SSP which is currently �74.50 per week. If yir husband�s wage is normally above �90 per week, he should get SSP but it won�t be paid for what would be his first three normal working days.
You may have heard of Incapacity Benefit which is paid to those who can not work but that has been replaced by a new benefit called Employment and Support Allowance (ESA.)
If yir husband does not qualify for SSP, he should claim ESA and if he contacts his nearest Jobcentre they should tell him who to ring in order to make a claim