why viral infections dont have medicines for

cure like bacterian and fungal diseases

@lalitha 
actually what happens , virus are fundamentally less complex than bacteria , and understanding their cellular ingestion process , is very very difficult , 
bacteria system is very simple , 
there is no complex process running on inside virus like that of formation of cell wall in bacteria , so, we cannot target these things in viruses , 

HOPE U UNDERSTAND NOW 
ALL THE BEST ..