3. Reasonable diet: A reasonable diet program should be formulated for the patients, including the amount of diet, dietary structure, water intake, etc. Most of the chronic heart failure patients need to limit salt intake. Most patients with chronic heart failure need to limit salt intake, and should be guided according to the specific condition of the patient to make recommendations to limit salt intake. Monitoring body weight: Fluid retention is one of the important triggers that lead to the aggravation of chronic heart failure patients. Weight gain is a reliable indicator of fluid retention, so patients receiving out-of-hospital treatment should pay attention to observing weight changes. It is recommended that patients should measure their weight after emptying the bladder in the morning. If there is a significant weight gain in a short period of time (e.g., an increase of 2-3 kg per week), they should consult a doctor in time, regardless of whether there are any uncomfortable symptoms. 5.Self-monitoring of the condition: Patients should be informed that the presence of conditions such as increased fatigue, decreased exercise tolerance, increased resting heart rate ≥15-20 beats/min, increased shortness of breath after activity, reproduction or aggravation of edema (especially in the lower extremities), and increased body mass are likely to indicate an aggravation of the condition and require prompt medical attention. Inform the patients of the factors that may aggravate their condition: the following factors may aggravate the condition of chronic heart failure patients and should be avoided by all means. (1) overwork and physical activity, emotional excitement and nervousness, etc.; (2) stress, colds, the whistle and other infections; (3) do not follow the doctor’s instructions, stopping the drug without authorization, reduce the dosage; (4) dietary improprieties, such as salty food, etc.; (5) without the consent of the doctor, the addition of other medications, such as non-steroidal anti-inflammatory drugs, hormones, anti-arrhythmic drugs, and so on. 7, regular follow-up: patients with chronic heart failure need to be followed up and evaluated in the hospital on a regular basis during the period of drug treatment. Patients with stable condition can be followed up once every 3~6 months. If there is any change in the condition, consult the doctor at any time. 8.Emergency measures: If the patient has difficulty in breathing, severe shortness of breath, sudden wheezing, spitting foamy sputum, cyanosis, inability to assess or sitting whistle, etc., suggesting the possibility of acute heart failure, should immediately rest and seek help from friends and relatives, or immediately whistle the emergency system, as soon as possible, go to the hospital for medical treatment. If the patient has no significant change in clinical symptoms but develops bilateral lower extremity edema, try increasing the dose of oral diuretics. If there is no significant improvement after 3 to 5 days of self-adjustment, the patient should also go to the hospital.