Hello,
Post acne scars need treatments with laser to improve, they usually don’t improve with creams. Dryness and itching of the skin could be due to any other skin problem , other than acne.
If acne is mild , frequent cleansing your face with good cleanser will help. Firstly need to see what type and grade of acne you are having before giving any creams..
Thank you
Next Steps
Consult a dermatologist