Suggest Treatment For Influenza Type-A

My husband has been in hospital for 4 days.Diagnosed with influenza typeA.Was for discharge this am.Had FBC done this am and his immunity is destroyed.WCC =o.8 Neutrophils =0.0 THe drs assure me his fbc on admission was normal.They think it is a reaction to the flu or else tamiflu.He is on IV antibiotics AND was commenced on Neupogen.Have you any suggestions.