Suggest Remedies For Pain In Penis During Erection

my 28 yr unmarried male friend has early morning penile erection with pain in penis since 1yr he met with accident 1yr back had fracture of thoracic vertebrates t4 to t8 has implants in his vertebrates since then he has this problem of erection he had habit of masturbation since 1& half yr what can be done for his problem?