Are you making your headaches worse?
D000700:Analgesics / Q000009:adverse effects*; D006261:Headache / Q000139:chemically induced* / Q000188:drug therapy; D006801:Humans; D004366:Nonprescription Drugs / Q000009:adverse effects*; D010349:Patient Compliance; D055553:Prescription Drugs / Q000009:adverse effects*
D000700:Analgesics; D004366:Nonprescription Drugs; D055553:Prescription Drugs