7 month old fever

El

poor bubba is sick 🤒 and feels very hot. her temperature is 38.4 degrees. i've given her baby nurofen. few times she refused to breastfeed and has a hard time staying asleep.

could anyone please tell me the possible causes of fever? our weather is inconsistent, one day it's hot & humid, but rainy and chilly the next. could that be a part of it?

any home remedies or advice? do's and don'ts?