Sexual assault survivors receive various positive and negative social reactions to assault disclosures, yet little is known about mechanisms linking these social reactions to posttraumatic stress disorder (PTSD) symptoms and problem drinking. Data from a large, diverse sample of women who had experienced adult sexual assault were analyzed with structural equation modeling to test a theoretical model of the relationships between specific negative social reactions (e.g., controlling, infantilizing) and positive reactions (e.g., tangible support), perceived control over recovery, PTSD, and drinking outcomes (N = 1,863). A model disaggregating controlling reactions from infantilizing reactions showed that infantilizing reactions in particular related to less perceived control, which in turn was related to more PTSD and problem drinking, whereas controlling reactions were not related to perceived control, PTSD, or problem drinking. Tangible support was related to increased perceived control over recovery, yet it was not protective against PTSD or problem drinking. Finally, PTSD and drinking to cope fully mediated the effect of perceived control on problem drinking. Implications for practice and suggestions for future research are discussed.