How to get 4mon. old daughters fever down?

Do not give her a cold bath... a warm bath would be better. Her body will naturally cool off when you remove her from the bath anyway. I'd be calling your dr just to have a chat over the phone atleast. Usually reactions to vaccinations would show themselves earlier then 24hrs... and like hot lips I was recommended to give my child a dose of medicine just before vaccination as a preventative caution. If you are breastfeeding I would just stick with that but if you are bottle feeding then water or diluted apple juice would be fine. Have a fan blowing on her and light clothing and sheets only. As for her temperature and fussing... you may just have to hold her arm down with the thermometer under her arm pit... she wont like it having the freedom of her arm taken away for a minute and she may scream louder :) poor little darling but what else can you do??? That's the only way you are going to get a reading unfortunately. Aside from medication... I used infants panadol... the best way to treat a temp is a bath. I have put my sick babies in the bath over and over throughout the day or night in attempts to bring their temp down and make them comfortable. Perhaps even a cool washer on her forehead or ice crushed in a washer to suck on... mine loved that when they were teething. I hope your poor little princess is well soon.