Thank for asking to HCM
If you do not have any other associate symptoms beside the headache then no need to worry about this, most of the headaches
does not have any specific reason in your case this could be unilateral frontal sinusitis
, if I would be your doctor then I would treat you with the following drugs, have steam inhalation thrice in day,
1) Tab Acetaminophen
three times in day
2) Tab Chlorodiazepoxide three times in day
hope this information helps you have nice day.