Flu shot at 6 month appointment, help please

I’m on the fence, since February will be almost over and he doesn’t do daycare and after his two last rounds of shots he was just not himself and had a face rash...but I’ve been stressing over this and keep changing my mind. Every time I see something on the news about the flu I’m convinced to get it but then those stories worry me and the fact that before 6 months is not safe but a week later is... I know that’s not a solid argument but it’s just where my mind goes, any advice or personal experiences or just saying if you added the flu shot to your los 6 month appt is appreciated.