Hey... having cold and cough in this age group is quite common. It is usually a viral infection which will subside in 5 days. If there is no fever then the antibiotics will not be of any use. The drugs which u have asked as basically antibiotics . It’s always better to take them after consulting someone.
Next Steps
Give a trial dose of syp sinarest-af 2.5 ml three times a day. And see if it works out
Health Tips
The day fever comes up. Better show it so some and u can plan antibiotics for the child . Hope this helps . Take care.