This chapter explains why treating social anxiety disorder is central in managing psychosis, given its strong links with paranoid ideation and the vicious cycle of negative social experiences and avoidance. It reviews assessment using the Social Phobia Inventory and Liebowitz Social Anxiety Scale, then summarizes a Clark and Wells-based CBT program adapted for psychosis. Core components include psychoeducation, video feedback, reduction of self-focused attention and safety behaviors, Attention Training Technique, behavioral experiments, imagery rescripting, and in vivo exposure. A case vignette with a patient with schizophrenia illustrates how remission of social anxiety expands the range of feasible interventions for paranoid delusions and other socially driven psychotic symptoms.