Since your symptoms started shortly after traveling, it is likely a standard viral infection. To treat a mild fever and cold, prioritize getting plenty of rest and stay well-hydrated with water or warm fluids. You can take over-the-counter medications like paracetamol (acetaminophen) or ibuprofen to reduce your fever and relieve body aches. For cold symptoms, saline nasal drops or an over-the-counter decongestant can help clear a stuffy nose. A warm saltwater gargle may soothe any throat irritation. Because you recently traveled, monitor your condition closely. If your fever spikes, lasts more than three days, or if you develop severe symptoms like shortness of breath, please consult a doctor immediately for a proper evaluation.