Hi, you are having acne
. acne is seen in the adolescent age group and continues till thirties .
You might have to take the prescribed oral medicines till your doctor advises until the active lesions decrease. it might take about six months or even more.
topical creams do not cause systemic side effects,
minocyclin is a tetracyclin derivative which is known to increase intacranial tension leading to head ache and dizziness
,might be the cause. So you can use other safer medicine like azithromycin
after doctor prescription.