Headache, fever, and body pain are commonly caused by viral infections, flu, seasonal illness, dehydration, or body inflammation. Many people also feel weakness, chills, throat irritation, or reduced appetite along with these symptoms, especially during the first few days of illness. Doctors commonly use paracetamol to help reduce fever, headache, and body pain because it is generally gentle on the stomach when taken in the correct dose. Adequate fluids, light meals, proper rest, and sleep may also help the body recover faster. Steam inhalation and warm fluids can improve comfort if cold symptoms are also present. Antibiotics are not always needed because many fever-related illnesses are viral. If your mother already has diabetes, kidney disease, liver disease, high blood pressure, or is taking regular medicines, it is better to be careful with painkillers and combination cold tablets. Breathlessness, confusion, severe weakness, chest pain, persistent high fever, or reduced urine output can indicate that the illness is affecting the body more significantly and may need medical care.