Chronic heart failure refers to a condition where the heart is unable to effectively pump blood throughout the body to meet the needs of vital organs, leading to a series of clinical symptoms caused by venous congestion and arterial ischemia. Symptoms include post-activity palpitations, orthopnea, swelling of the lower limbs, and enlarged liver. This condition causes great distress to patients and requires long-term use of effective medications to alleviate chronic heart failure. Patients with chronic heart failure need to ensure adequate rest, avoid overexertion, adhere to a low-salt diet, and limit the intake of spicy and greasy foods to prevent exacerbation of heart failure.