Hi...
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns...
As per your complain you are suffering from Inflammatory
Hyperpigmentation secondary to acne and it does not looks like sunburn..
You should wash your ace with a
salicylic acid and
glycolic acid containing facewash as it helps in exfoliation of dead skin.
You should apply cream containing Kojic Acid, glycolic acid and arbutin.
Apply Azelic acid containing cream
You can apply Vitamin E oil on face..
You can exfoliate your skin using a gentle scrub twice a week.
Avoid sun exposure and if you are exposed to sun apply a SPF 50 containing sunscreen lotion.
Take Vitamin C supplements..
You can also
consult a dermatologist and go for glycolic acid peels,
microdermabrasion and dermal rollers..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.