my son had been coughing for more than three weeks about a couple of weeks however three days ago he againg had running nose , coughing, fever etc. in his blood tesh his TLC count was 11,200/cmm, Ploymorphs 72%, Eosinophil 05% and AEC 550/cmm . What is the problem he is suffering from. Kindly diagnose his problem and suggest reflief measure