Brief Answer:
Consider life style, chronic diseases as cause.

Detailed Answer:

Hi,

Excessive head sweating is mostly due to some hormonal problems, life style factors or chronic disease

In your case, I feel it's likely to be-
- Due to some lifestyle problems,
- Excessive exposure to heat, give rise to heat rash as well as excessive head sweating.
- Low blood sugar due to fasting, skipping meals, or over exhaustion lead to low blood sugar & head sweating.
- Tension, anxity, produces more head sweating.
- Family history may be one of the causes of more head sweating.
- Excessive head sweating may be an indication of over activity of thyroid hormone
- Some times the sweating is along with blood pressure, heart problem, thyroid over activity...
- In ladies head sweating is seen around menopause.

I hope I have satisfied your query. I will be happy to help if you have any more.

Thanks,

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