How can I best support my husband who sometimes seems in denial that his mother is dying?
Get your husband to talk with Hospice, and get a counselor. One of the roles of Hospice is to counsel and provide assistance to those who are having trouble understanding the finality and accepting that this is the end of life for a loved one. Affirming life while respecting the dying process and accepting death as a normal part of life is the key, and Hospice, in addition to nurses and aides, offers a support system to help the patient live as actively as possible until death, and helps family members cope during the patient's illness and in their own bereavement.