I have 2 kids 3 year and 1 year. They both are...

: Managment
This cases of child increase with cahnge of weather this moment , which increase chance of common cold which occur by viral infection rapidly distrbuated between children , we treat it mainly by treat symptoms , you should examin temprature and avoid to be high above 38 by use analgesia paracetmol syrup and you can use sitz bath , then you can assist to open noses by use drops of normal saline , you should save them by avoid cold weather and give them healty food which contain
vitamine c as fruits suca as orange and give them hot tea to assist imrovment of their cases 
: Diagnosis 
Common cold on children is common and do not need alot of worry , you can treat and deal with them as description above 
If any change of symptoms by increasing or elevate in temprature above 38 you should take them to pediatric hospital to examin them and deal with their cases

: Managment
This cases of child increase with cahnge of weather this moment , which increase chance of common cold which occur by viral infection rapidly distrbuated between children , we treat it mainly by treat symptoms , you should examin temprature and avoid to be high above 38 by use analgesia paracetmol syrup and you can use sitz bath , then you can assist to open noses by use drops of normal saline , you should save them by avoid cold weather and give them healty food which contain
vitamine c as fruits such as orange and give them hot tea to assist improvment of their cases 
: Diagnosis 
Common cold on children is common and do not need alot of worry , you can treat and deal with them as description above 
If any change of symptoms by increasing or elevate in temprature above 38 you should take them to pediatric hospital to examin them and deal with their cases