Happy new year to you too..
can be associated with lower respiratory tract
infection. Treatment of croup is steroid
and nebulisation that she has received and symptoms improved.
Croup can predispose to bacterial infection which too has been treated with antibiotics. Now you are worried for the excessive crying of the baby. This cry not at all related to croup and medications.
There can be so many physiological or pathological causes of crying.
I would suggest you to consult a physician to clinically examine the baby and to rule out any abnormality like colic
, earache or other.