Sexual difficulties in individuals with narcissistic personality disorder can be complex and multifaceted. Treatment for these individuals would generally involve addressing both the underlying narcissistic traits and the specific sexual concerns. Psychotherapy, particularly approaches like cognitive-behavioral therapy (CBT) and psychodynamic therapy, can be helpful in addressing both the personality disorder and the sexual difficulties. These therapies can help the individual develop healthier patterns of relating to others and understanding their own emotions and behaviors.

It's important to note that narcissistic personality disorder can be challenging to treat, as individuals with this disorder may struggle with self-awareness and the willingness to change. A skilled therapist with experience in treating personality disorders and sexual difficulties would be essential in navigating this process.

Additionally, medications such as selective serotonin reuptake inhibitors (SSRIs) might be considered if the sexual difficulties are related to mood or anxiety symptoms. However, medication alone would not address the core issues associated with narcissistic personality disorder.

As always, treatment approaches should be tailored to the individual's specific needs and should be carried out under the guidance of qualified mental health professionals.