Hi, Thanks for posting in HCM. I understand your concern. What problems your partner is facing with reference to erectile dysfunction is more of psychological problem than physical. To overcome erectile dysfunction, you can use Tablet. Tadalafil 30 minutes before the act to achieve good erection. Arginine is an amino acid which can be used as supplement. Horny goat weed is an herb. It is also used to arouse sexual desire and for erectile dysfunction. In case if premature ejaculation is associated with it, he needs to practice behavioral technique like pause and squeeze technique along with use of local anaesthetic spray to decrease sensation. Slowly, over a period of time, he would gain confidence and can overcome the problem and limit the usage of medications. He can also practice meditation to keep your mind calm and spend more time during foreplay to increase your confidence. Hope the information provided would be helpful. All the best.