Đi khám bác sĩ nếu bệnh táo bón không thuyên giảm sau vài ngày. Đi khám bác sĩ nếu gặp tác dụng phụ mức độ nhẹ do sử dụng vỏ hạt mã đề. Tìm kiếm trợ giúp y tế ngay lập tức nếu gặp tác dụng phụ nghiêm trọng.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
If you have continuous constipation that lasts more than one week, you should call your doctor right away. You should also call your doctor if you have any other drastic changes in your bowel habits, such as bloody stools or bleeding from your rectum. These symptoms may indicate a serious problem that requires medical treatment. Some people experience negative side effects and mild allergic reactions to psyllium husk. Discontinue use of psyllium husk products and call your doctor if you have any