Whether a baby should take a bath during a cold depends on the baby's specific condition.

First, if the baby has a mild cold, fever, or similar symptoms with a body temperature below 38.5 degrees Celsius, the baby can certainly take a bath. Bathing can promote blood circulation, accelerate the excretion of germs, and also help to reduce the fever.

Second, if the baby has a high fever that does not subside, a body temperature above 38.5 degrees Celsius, and shows symptoms like poor spirit, poor appetite, reduced urination, and drowsiness, it is generally not advisable to bathe the baby. Bathing at this time can consume some of the baby's energy, leading to a risk of oxygen deficiency and increased drowsiness. Furthermore, if the bath water is too hot, the high-temperature environment is not conducive to heat dissipation and may worsen the condition. Also, during the bath, excessive sweating can lead to exhaustion. When the fever is high, the capillaries are dilated; bathing at this time may cause the capillaries to constrict, which is not conducive to heat dissipation.

Therefore, deciding whether a baby should take a bath during a cold should depend on the baby's specific condition.