What drug can i give my 4 month daughter and cough? i have piriton, zyrtec (cetirizine) and allerief in the house. she weighs 7kg. give dosage too

See doctor: It is not recommended to give infants and young children cough medicine as the cough is typically protective and the medications can be harmful. If the cough appears to be related to a cold and no difficulties breathing it should start to resolve in 7-10 days. If not getting better or not related to a cold she should be evaluated by her physician.