I catch a cold to discover nose is blocked, oral cavity is scratchy, how be to return a responsibili

Cold found that the nose is blocked, oral itching may be because the patient's resistance drops, suffered from rhinovirus, adenovirus, Kasaki virus and other viral infections caused by viral influenza, under the action of the virus led to nasal mucosa inflammation, telangiectasia, can cause nasal congestion, due to mouth breathing caused oral itching.