Thank you for your query.
To answer your question first, it is safe to give amoxicillin
to an infant of 2 months of age along with Ceopdem.
All sound coming from the chest need not be an infection. Transmitted sound can also be mistaken for chest congestion. I would suggest that you should go in for blood examination and keep a temperature record which shall guide you if there is need for antibiotic to be given to your infant son.
I hope I have answered your query to your satisfaction.
Wishing your son an early recovery.
Rajiv K Khandelwal