Your symptoms are most likely due to a mild throat infection or irritation from weather changes, which is usually viral and settles with simple care. You can manage this by drinking plenty of warm fluids (like water, soups, or herbal tea), doing warm salt water gargles 2-3 times a day, and using steam inhalation to soothe the throat and reduce dryness. For a dry cough, simple remedies like honey (if not diabetic), lozenges, or a non-sedating cough syrup can help, especially if you need to stay alert. Avoid cold drinks, dust, and smoke, and try to rest your voice. Usually, antibiotics are not needed unless symptoms become severe or prolonged. If you develop a high fever, thick yellow/green phlegm, severe throat pain, or symptoms lasting more than 5-7 days, it is important to consult a doctor for proper evaluation.