he has cold... blocked his nose he is difficult to take breath while he drink milk

A. Cold is most of the time because of viral illness and if the child is having recurrent running nose and nasal congestion it may be a part of allergic rhinitis also so it needs a proper examination. steam inhalation will be beneficial in both the cases along with decongestant medicine like alex cold/ hatric 3/ sinarest. As a part of viral illness there could be associated symptoms like cough and fever which needs hitreatment accordingly along with a proper hydration needs to be maintained .