Hello
Thanks for the query to H.C.M. Forum.
As you mentioned that you are 21 years old girl with acne .
Treatment taking from 10 days .
Two option are there,
1 Continue this treatment for next one month so that desired result cna be taken.
2 Add oral
clindamycin or
erythromycin 500 mg twice in day orally for one month.
As clindamycine 7
nicotinamide gel is a very good drug alond tretinoin .
3 Wash your face with permethrine soap dry it with a towel and there after apply these gel & lotion.
Still no relief then get in
ultrasound of both ovaries for any cyst as Poly Cystic
Ovarian Disease is most common cause of ACNE in young child bearing female .
2nd reason of acne may be hormonal imbalance so get in blood examiantion for androgen , estrogen , estradiol , FSH /LH ratio.
Hope this information will be helpful for you.
Good luck.
Dr. HET