Cold and cough are most commonly caused by a viral infection like the common cold and usually get better within a few days with simple care such as taking adequate rest, drinking plenty of warm fluids, and eating light, nutritious food. You can use steam inhalation to relieve congestion, saline nasal drops for a blocked nose, and take paracetamol for fever or body aches if needed; a suitable cough syrup may help depending on whether the cough is dry or with phlegm, but antibiotics are generally not required unless a doctor confirms a bacterial infection. It is also important to avoid cold drinks, dust, and smoke, and maintain good hygiene to prevent the spread. If symptoms persist beyond 4-5 days, become severe, or are associated with high fever, breathlessness, or chest pain, you should consult a doctor for proper evaluation.

At 4 months of pregnancy, a dry cough for a week is usually due to a mild infection or irritation, and most cases improve with simple care; menthol-based chest rubs can be used in small amounts externally for relief, but avoid applying near the nose and use them sparingly. Safe options during pregnancy generally include steam inhalation, warm fluids, saltwater gargles, and honey (if you are not diabetic), while medicines like paracetamol for discomfort and certain doctor-prescribed cough syrups or antihistamines may be used if needed; however, you should avoid self-medicating and always check with your doctor before taking any medicine to ensure it is safe for you and the baby. If the cough persists beyond 1-2 weeks, worsens, or is associated with fever, breathlessness, or chest pain, it is important to seek medical advice for proper evaluation.