The main reasons for drinking laxatives and having a runny nose include allergies and colds. 1. Allergy: When the patient has an allergic reaction to the ingredients of the laxative and is accompanied by allergic rhinitis, the patient will suffer from nasal congestion, runny nose, itching and other symptoms. 2. Colds: If the patient takes too large a dose of laxative or laxative strength is too strong, repeated diarrhea, will lead to a decline in the body’s immune system, it is easy to catch a cold, the patient may have a runny nose, nasal congestion, sore throat, pharyngeal itching and other symptoms. Drinking laxatives runny nose symptoms are more serious, such as accompanied by fever, general weakness and other conditions, it is recommended that patients can go to the hospital internal medicine clinic, under the guidance of the doctor’s interview to choose a reasonable treatment plan. Drugs should be used under the guidance of a doctor, do not take laxatives on your own.