Ask the mother about her support system. We now are aware that mothering is a social activity. Suggest new ways to cope with stress. A playgroup might also be an option. Help the mother form realistic expectations.
Some mothers blame breastfeeding for their difficulties.
While it does take a lot of energy to nurture a child, time and time again we have heard of babies who were weaned only to continue having the problem their parents hoped weaning would solve. Encourage the mother to set priorities. Many mothers have found that a spotless house moves down the list as a priority for a short time. Napping when the baby naps may be a good idea for a while. Reassure the mother that it is okay to set limits.