What should be done if a pregnant woman develops chicken pox 10 days after delivery regarding the neonate?

In the scenario where a pregnant woman develops chicken pox 10 days after delivery, the most appropriate course of action regarding the neonate is to simply observe the infant. This is because the risk of the newborn developing chickenpox is related to maternal varicella infection during the pregnancy, particularly in the third trimester or just before delivery.

Since the mother became infected with chicken pox 10 days post-delivery, the neonate would not have been exposed to the virus in utero and should therefore be at a lower risk for developing the disease.

Observation allows for monitoring of any symptoms that might arise without immediate intervention, which is typically sufficient in this context. Implementing more aggressive measures such as administering VZIG (Varicella Zoster Immune Globulin) may be warranted in cases where there is a direct risk to the neonate, such as if the mother had chicken pox shortly before delivery. However, in this case, the timing of the mother's infection indicates that the infant has already been delivered without intrauterine exposure.

Thus, the appropriate approach is a watchful waiting strategy, ensuring that if any symptoms related to chickenpox do arise in the neonate, appropriate treatment can be promptly initiated.