Urgent Care ExpressMed at University Health Robert B. Green Campus provides walk-in care in downtown San Antonio for minor illnesses and injuries. We treat ear infections, cold and flu symptoms, sprains, minor cuts, rashes, stomach pain and urinary tract infections. Services include COVID-19 testing, allergy and asthma care. Open seven days a week from 7 a.m. to 8 p.m. near I-10 and the I-35 split. Most insurance is accepted.