Question
A one-year-old infant recently developed small red dots on their body, particularly noticeable around the neck area, without any symptoms of fever or cold. What could be the cause?
Answer
Based on the description, there are two possible causes: either heat rash due to high temperatures or allergic purpura. Allergic purpura is characterized by symmetrical distribution, appearing in batches, and can sometimes extend to the upper limbs and trunk in severe cases. An initial assessment suggests heat rash might be the case. It is recommended to bathe the infant and apply talcum powder to observe if the red dots fade. If there is no improvement, it is advisable to conduct further checks to rule out allergic purpura. Additionally, the possibility of viral herpes should also be considered, and appropriate checks and treatments should be pursued.