Hi!,
Welcome to HealthcareMagic forum,
If the patch is smooth with no scales or itching then it is called
ALOPECIA AREATA,and if it is itchy and has scales in it then it is a fungal infection(TINEA BARBIE).It is important to differentiate between the two conditions.For either of this you should meet a good
dermatologist for treatment.Alopecia areata(AA) if not treated can involve whole of beard area or even scalp and body hair to lead to complete
baldness.So take immediate treatment.Options for treatment are injection given on the spot,topical creams ,oral
steroids to irritants which can help hair growth .AA can usually be associated with stress or other auto immune ds like
thyroid problem.So get that checked too.Ifit is fungal then it can be treated with antifungal creams and tablets.
take care,
Dr.chawda