Whether acute upper respiratory infections require fluid administration mainly depends on the patient's condition; the vast majority of acute upper respiratory infections do not require fluid administration. An acute upper respiratory infection, commonly referred to as a cold, is primarily caused by various pathogens, such as viruses or bacteria, infecting our upper respiratory tract, including the nose, pharynx, and larynx, which are commonly referred to as the upper respiratory tract. The symptoms of an upper respiratory infection mainly manifest as a runny nose, nasal congestion, cough, etc. For most people with normal immune function, young and middle-aged adults, or older adults in good health, upper respiratory infections can heal on their own, with or without medication. However, for some individuals in poor health, or older adults, an upper respiratory infection could potentially trigger heart failure, pneumonia, etc. Therefore, in these cases, some fluid therapy might be necessary, so the decision should be made based on the individual and specific medical condition, not arbitrarily applied across all cases.