A simple method of treatment for the acute headache.
D000208:Acute Disease; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D007275:Injections, Intravenous; D008012:Lidocaine / Q000008:administration & dosage*; D011343:Procaine / Q000008:administration & dosage*
D011343:Procaine; D008012:Lidocaine