First pharynx and larynx stresses urticant feeling and calcination feeling, epigastrium calcination feels or ache, appear ever since gastroenteritis symptom, acuteness vomiting, diarrhoea.

• 先有咽喉抓痒感及灼烧感，上腹部灼烧感或疼痛，其后出现胃肠炎症状，剧烈呕吐、腹泻。