personally i dont really believe in those to be honest snoop niether do my Prof in school bec every season as u can see the flu bugs change there way's of adapting with the vaccine and so making the vaccine useless. i would'nt recommend taking it a second time this year though bec it wont help ( do let me ask around in uni and see what they think considering they r soo much better than me i'm still a student

and i will get to u )
look if u seem to be catching flu's more often i highly recommend u increase yr intake of vitamin C!! this is sth u can which is good for yr health and has no harm on u bec Vitamins unlike other drugs are removed with urine so dont have any negative reactions they also increase yr immunity a great deal. so give that a try bec obviously yr immunity takes a dip in the winter season as evident by multiple flu's. i will ask around on saturday and tell u what they tell me bro
always try to be faster than the flu in general once u feel like u have the beginnings of a cold start taking flu tab's and a common mistake people fall in if u will start an antibiotic course please finish the entire course even if u feel better and there is no need to take it any more bec if u dont the next time u use the antibiotic it will be useless. so always remember this its very important u finish the entire course regardless of how u feel.