Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern..
As per your complain it seems that your sister is suffering from
acne vulgaris as well as Post-inflammatory
hyperpigmentation..
Tenoveta GM contains clobetasol that is a steroid and Neomycin that is an antibiotic and can be used for a short term for resolution of dark spots as well as pimples..
In case if you are worried about side effects she can start washing her face with
salicylic acid containing facewash, apply gels containing
benzoyl peroxide and clindamycin or neomycin over the pimples, do cool compresses and avoid oily food..
For pigmentation she can use creams containing Kojic acid,
glycolic acid and arbutin..
Exfoliate her skin with a gentle scrub weekly..
Limit sun exposure, take Vitamin C supplements and use Vitamin E gel..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.