You are three months
pregnant. It is a relatively safe time to take medicine (but with Doctor's consultation).
Do you have fever? If yes please consult a Gynaecologist. If not , you may try Cough Lozenges, Honitus, and Tab Vit C 500 mg daily
Next Steps
Please consult a Gynaecologist on Practo. But also consult a Gynaecologist in your area because ultimately you will have to go there for delivery.