My wife just does not let me take care of the baby. My baby is 5 mths old now. It drives me nuts and I tried reasoning with her but she is becoming very hard to deal with. What do I do so that she trusts me more?

It happens with new mothers. It's either stemming from her own anxiety over handling the child or she is probably not confident that you would be able to handle the baby properly. My husband made sure he did the little things like reading up and discussing articles about parenting, helping out with the baby's laundry and other baby stuff. A lot of it he didn't have to do really...but when I spoke to him he said that these are ways that help him be more involved. It also helped that he was involved throughout the pregnancy since the beginning