I am Doctor Thomas, a double board certified doctor in internal medicine and integrative medicine, with advanced training in several other fields. I am a clinician of over 20 years experience. I will give you an initial answer or ask you a question, but be sure to use reply to expert to communicate with me as needed.
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What you do depends on your diagnosis.
And you apparently do not have a diagnosis.
First you need to see internal medicine.
This can be thyroid disease for exam.
It can be infection of the scalp.
It can be autoimmune disease, specifically alopecia arreta, which requires steroids.
Each treatment is different depending on findings on exam and labs.
This is not a self help situation or home/over the counter treatment.
You seem to be doing this on your own, yet, sudden loss , just as an example, can represent a serious underlying condition.
In addition, if you are male, causes tend to be somewhat different overall than for females, although they can
be the same.
If the internist thinks it is skin related, you then need to see a dermatologist.
I am also glad to look at a picture here.
If this is male baldness creams like minoxidil can help
Sometimes creams are used for female baldness as well.
However, it all starts with an exam and medical history.
Take some time and review this mayo clinic list of causes and treatments
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