It's possible for the hair follicles to grow back in alopecia barbae, but this can vary from person to person. In some cases, the hair may grow back on its own without any treatment, while in other cases, medical intervention may be necessary to promote hair regrowth.
The treatment options for alopecia barbae include topical or oral medications, such as corticosteroids, minoxidil, or immunomodulatory drugs, which can help to stimulate hair growth by reducing inflammation and promoting blood flow to the affected area. In some cases, hair transplant surgery may also be an option to restore hair growth in the beard area.
It's important to note that treatment results can vary, and it may take several months to see any improvement in hair growth. It's best to consult with a dermatologist or a healthcare provider to determine the most appropriate treatment plan for your individual situation.