So my baby seems like he is sick all the fam had sore throats and ear infections and my 2 other kids had fevers but they were broke with Tylenol. My 2 month old now seems to be sick he has a little cough and I took his temp under his arm pit it was 99.9 I don't know if that is a fever ???? I don't know when its time to take him to the er and I really don't wanna take him if its not a big deal cause the flu is going around and I don't want to take him in that germ infested place . advice please !!!