Hi there! I came upon this page while searching for reasons of body temperature drop in babies and I am thankful to know I'm not the only mother puzzled by such temperature variation. I have a 9months old baby whose body temperature started dropping as low as 34.6degC since last night. My hubby just took her to the hospital now after I checked on our babysitter who took my girl's temp with a reading of 34.7degC and has merely increased to 35.2 after she wrapped her with thick blanket. Last night, we kept her warm by dressing her up and putting on blankets with the heater turned on in our room. She had heaten up to 36degC but was mostly down at 35.5~35.7degC. This morning though, before having her breakfast, her body temp measured 37.2degC. We are using a thermoscan. Last night, the lady in the pharmacy told my husband to take her temp rectally which we did and we got a temp reading of 35.7degC. She also had rashes in her forehead, back and stomach area. It appears like the usual heat rash but was alarming since it wasn't that hot yesterday and she didn't sweat that much. She is currently taking meds for AGE and Tonsilitis treatment. On Friday night, she had a high fever up to 39.5degC and with the doctor's consent, I administered a supository (Voren) to bring her temp down. It was the first time I used Voren on her (1/2 tab). For the rest of the night (Fri-Sat morning), her body cooled down to below 35degC but eventually normalized until yesterday afternoon. Reading from the internet, it appears that low body temperature, just like fever, entails some kind of infection. It bothered me to see that it can also be caused by heart murmur or thyroid abnormality so we decided to bring her to the doctor. I will update you later about how the check up was. This should help moms like us know how to deal when things like this happen to our kids. Cheers and more power to all moms out there :)