A cough that changes with the weather, sometimes wet and sometimes dry, is often due to cold, viral infection, or allergies. To relieve it, you can try steam inhalation, warm fluids, honey with water, and avoiding dust or cold air. For wet cough, medicines that help loosen mucus (expectorants) may be useful, while for dry cough, soothing cough syrups can help reduce irritation.

For a short-term cough of 4 days, you can try over-the-counter cough syrups depending on the type of cough. For a dry, irritating cough, a soothing syrup like a simple demulcent cough syrup may help. For a wet cough with mucus, an expectorant syrup can help loosen phlegm. In addition, drink warm fluids, honey with water, and do steam inhalation to ease throat irritation.

During pregnancy, especially at 4 months, it is important to be careful with medicines. For a cough, safe options usually include warm fluids, honey with warm water, steam inhalation, and saline nasal sprays. Some cough syrups labeled as safe for pregnancy may be used, but you should always check with your doctor before taking any medicine.