The source of his asthma was those wounds, as well as the putrid stuffy air in the jail. The nagging skin problems were the result of being soaked in filth there.
病患的氣喘，肇因於大牢濕冷污濁而令人窒息的空氣；纏擾不去的皮膚病，則是大牢穢物浸染的結果。