Brief Answer:
Alopecia areata most probably

Detailed Answer:
Hi,

Welcome to HCM..

After reading short history and looked at photos, I could conclude that most probably your boss may be having alopecia areata.

I would like to share knowledge with you about alopecia areata..

-Alopecia areata is a type of hair loss that occurs when body's immune system mistakenly attacks hair follicles , which is where hair growth begins.
-The damage to the follicle is usually not permanent.
-Nobody knows why the immune system attacks the follicles.
-Alopecia areata is most common in people younger than 20, but children and adults of any age may be affected.
-Women and men are affected equally.
-Alopecia areata usually begins when clumps of hair fall out, resulting in totally smooth, round hairless patches on the scalp.
-In some cases the hair may become thinner without noticeable patches of baldness, or it may grow and break off, leaving short stubs called "exclamation point" hair.
-In rare cases, complete loss of scalp hair and body hair occurs...alopecia totalis and alopecia universalis
-After cure of the disease,relapses may be there

You tell your boss to consult dermatologist immediately. After thorough examination and investigations, he might give perfect treatment.

Many remedies are known to improve the disease..

- oral steroids in tappering dose
- immunomodulator like levamisole
- biotin
- application of steroid lotion,trioxsalen solution,minoxidil solution
- intradermal injection of steroid like triamcenolone 10 mg

He has to keep patience for the good result. Stress might exacerbate the disease.

I hope you got my answer. Still any query,feel free to ask.

Thanks.

Dr. Ilyas Patel MD

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