Erectile dysfunction is a known complication of radical prostatectomy and recovery depends on many factors including age of the patient, sexual function before surgery and the degree to which the nerves for erection were spared during surgery.
Treatment options include medications such as viagra/cialis/levitra, intracavernosal injections( injection of medication into the penis), suction devices and penile implant surgery.
The decision as to which of these which of these will benefit a given patient will require a thorough patient history and evaluation by a male sexual function expert.
This answer is not intended and does not substitute for medical advice- the information is for patient education only.
Thank you so much for your prompt response. I'll give her the info and suggest seeing a specialist. Have a great night.