A cold is a symptom of nasopharyngeal infection caused by a viral infection, typically characterized by sneezing, runny nose, nasal congestion, throat discomfort, sore throat, fever, and headache. Generally, a cold can be cured within about a week through rest or symptomatic treatment with medication. Usually, there is no need for an IV drip. However, in some special cases, such as when the patient is young or elderly and weak, and where symptoms of a cold, such as sweating a lot due to fever and lack of appetite, occur, it may be appropriate to administer fluids intravenously.