The main difference initially would be that the flu causes a fever and allergies do not. Otherwise they share the symptoms of cough, sneezes, headaches, watery eyes and runny nose. The flu also causes body aches and perhaps joint aches but allergies usually do not.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.