occurs in has participant quality has disease treated with drug Sumatriptan [Chemical/Ingredient] SILDENAFIL TAMOXIFEN SUMATRIPTAN SUCCINATE TOPIRAMATE INFLIXIMAB VARDENAFIL TADALAFIL breast cancer epilepsy impotence migraine pulmonary hypertension Crohn's disease Elderly Child Adult Adolescent flushing AE 10016825 a skin discoloration AE which has an outcome of flushing, a sudden reddening of the face, neck, or upper chest HPO: HP_0001033 SIDER: C0016382 CTCAE:E13771 NCIt:C26775 SS, YH 脸红 WEB: http://www.nlm.nih.gov/medlineplus/ency/article/003241.htm skin discoloration AE AE severity G1 AE severity G2 AE severity G3