I need to ask few more questions before answering your query. Early consultations can prevent complications. Kindly contact me on whatsapp chat  (84960595 six five) Dr Faisal Zoheb MBBS , MD PAEDIATRICS , PGPN (BOSTON), Neonatology fellow ( Newborn and vaccination specialist )

Based on your description, your child has an irritant-triggered dry cough (smoke exposure) with mild fever. For an isolated dry cough, the most appropriate option among the medicines you have is Benylin Dry Cough syrup. It helps suppress dry, hacking cough and is suitable for a 6-year-old child. Recommended dose (for 20 kg / 6 years): • Benylin Dry Cough syrup: 5 mL 2–3 times a day Alex-P and Solvin Cold are combination syrups meant more for cold with runny nose, congestion, or productive cough, and are not preferred for an isolated dry cough.