my baby got cold he is just 57 day boy how to control the cold due to this he is vomiting more

A. Hai good morning !! Breast feed baby frequently every two hours for hydration. Burp well by holding baby in upright position for 5-10 minutes. For cold relief ,take one betal leaf apply castor oil on upper side keep on a plate heat for 5-8seconds on low flame once the leaf is luke warm that baby can bear ,place the leaf upper side (oil applied) resting down on baby head leave it for a minute ,do this 1-2 times a day .