18 month old has 102.5 fever for 10 hrs now.not going down with tylenol (acetaminophen).runny nose/fatigue/irritable.no appetite.when should she be seen by a doctor?

Taking fluids: It depends mostly on how she looks to you. If she is alert and taking fluids well, wetting her diaper, no breathing difficulties, then symptomatic treatment is advised. Make sure she take more than her usual amount of fluids. Lukewarm baths will help her feel better. You may give Tylenol (acetaminophen) every 4 hours if needed. If she is worsening, trust your instincts and get her evaluated. Hope she feels better

Infantile fever: The child will progressively weaken due to dehydration and malnutrition unless seen by doctor immediately. Children this age, do not have a lot of reserve and can crash easily. The more dehydrated the child becomes, the more likely he will need IV rescucitation. The fever prolonged may also cause seizures. Call your pediatrician and see if you may need a direct admit and bypass ER.

Depends: If the child's fever does not truly go down even with meds then she should be seen. Speak with your pharmacist and get the appropriate dosing for children's ibuprofen - this can be helpful. If the child will take fluids that is most important - one can live without food for a day but they must take in plenty of liquids and make urine - if no wet diapers, no tears then she should be seen

Fever at 18 months: Fevers are higher in this age group and it is part of the bodies immune response to fight off infection. With a runny nose it is likely a viral upper respiratory infection, or cold. Irritability and fatigue go along with this as well. Expect the fever to last about 3 days. Tylenol (acetaminophen) will bring the temp down about 2 degrees, with higher temps, change to Ibuprofen instead. See your Dr. if fever >3d