Alopecia Barbae also known as beard hair loss. Alopecia Barbae refers to patches in facial / beard hair. This mainly occurs when the immune system wrongly detects hair follicles as invaders and attacks them. This causes bald patches in the facial region. In most cases patches remain confined to small areas until treated for hair regrowth. However if this is due to genetics or family history then chances are that it cannot be reversed.
Though over the counter medications are available to treat alopecia barbae but they do come with their own side effects. Natural ways to cure this would be by massaging the effected area which stimulates blood flow and can revive the roots. You can take Jojoba oil or Almond oil and mix lavender essential oil in it. For example. You if you take 100ml of Jojoba Oil, you can add 2-3ml of Lavender oil in it. Mix well and leave it for a day to fully mix. Then apply everyday on the affected area and massage it well into the skin. Since jojoba oil is easily absorbed into the skin, this should not take more than 20 min to, after which you can wash your face.
Give this natural treatment a few months before you start seeing results.