My 5 month old has a fever of 100.8 has a stuffy nose and a cough should i take him to the er?

What other sx ?: Fever @ a 100.8 level is common in infants with a wide variety of minor and some significant illnesses. I find tylenol (acetaminophen) can give comfort ; take a degree off a temp, but any resolution will be the illness going thru its cycles.If baby is playing some ; taking fluids well enough to wet every 6hrs, u may be able to ride this out at home. If quiet, taking poorly etc. Call in ; or see the dr.