Subjects will be monitored with blood pressure, temperature, and pulse, pre-injection, at 15 and 30 minutes after injection, prior to being allowed to leave the clinic. Diphenhydramine 50 mg, solumedrol 100 mg, and epinephrine 1:1000 (1 mL) must be available bedside (or a clinic code cart must be available). If hypotension (SBP <90mmHg for patients with baseline SBP > 110mmHg or > 20 mmHg decrease for those with baseline SBP< 110 mmHg), urticaria or orofacial or laryngeal edema or bronchospasm occurs, an IV line will be placed and the diphenhydramine 50 mg, solumedrol 100 mg, and epinephrine 1:1000 sq are recommended. In this event, patients will be transported emergently to the emergency room if stabilized or the code team will be contacted if patients continue to have progression of symptoms or worsening hypotension. For fever>101.5, acetaminophen 650 mg may be given orally.