Howard Brown Health Center, Center on Halsted, Directions Psychological Services, and the VALEO Program at Lakeshore Hospital are providing a free workshop to address substance abuse issues. The discussion will take place April 20, 7-8:30 p.m., in the Community Room of the Howard Brown Health Center, 4025 N. Sheridan. For more info, call (773) 388-8904 or visit www.howardbrown.org.