A method of treating a disc that is leaking nucleus pulposus through at least one defect in the annulus fibrosus. The method includes injecting a fibrin sealant into the disc to reduce at least a portion of the at least one defect, wherein the fibrin sealant injected into the disc comprises fibrinogen and an activating compound, wherein at least a portion of the fibrin forms after injection, wherein the fibrinogen, the activating compound or both has been reconstituted with a solution containing at least one additive, with the proviso that a corticosteroid is absent from the fibrin sealant injected into the disc.