Thanks for posting your query
For regaining your skin tone and reduction of acne
you may do the following :
Avoid sun exposure and a sunscreen with UVA and UVB protection even if indoors, during the day
Use a Face wash containing glycolic acid
Take a few sessions of glycolic peels, which will help in both improving tone and reduction of acne
Take a well balanced diet and drink about 2-3 litres of water per day
take oral antioxidants
and Vit C and E supplements
Get your skin analysed by a dermatologist
for grading of acne and appropriate treatment
in the form of antibiotics oral and locally .
Acne is not curable but it can be controlled with medication. Keep in touch with your doctor for the same.
Hope this solves your query