My parents do not go out and are at home. Mom drinks cold water from fridge usually. Friday she drank cold pressed pomegranate juice from fridge 100 ml. Same day night she started coughing dry cough. Saturday she got little headache, fever, cough is there. Crocin 500 and cetrizine she ate. Fever became less. Sunday she was ok but fever came in noon. Now Monday, she has no fever but dry cough n cold. Sometimes little wet cough in morning. No sore throat. Please advise medicine for this. Now today my dad also got infected from her, he is 82. He has fever, dry cough, wet nose, headache. Due to coughing his throat is irritating. Please advise medicine.