A professional therapist will help open dialogue between a couple so that both partners can start talking about any issues in their relationship.
Counselling and psychotherapy involves the support of a trained and experienced therapist while self-help is usually an attempt to make personal changes without the help of another person. Both types of personal development can be successful.
Most people go through difficult and challenging times at some point. Life is not always easy or straightforward. There are benefits to seeking help when it's needed.