How to stop deduction in wage type for one employee

Hi experts ,

As of now i am maintaining a processing class '10' as reduction allowed but when i apply for 100 percent sick leave paid its amount has to revert back its not happening ,that means full pay for that wage type has to display but its deducting one day amount for only one particular wage type can you plz guide me as i am maintaining positive time mgm..

thank you in advance .