Acidity, along with a viral infection and allergy, usually happens when the body is irritated and sensitive from multiple triggers at the same time. Keep your meals light and simple with smaller portions, avoid very spicy, oily, or sour foods so your stomach stays calm, and drink warm fluids throughout the day to ease both your throat and digestion. Rest well, keep your surroundings clean and dust-free to reduce allergy symptoms, and avoid lying down soon after eating to prevent stomach acid from rising. You can also keep your head slightly raised while resting for better comfort. If you notice worsening cough, burning, or breathing discomfort, consult a doctor to manage all symptoms safely and together.