This is a phase 1 and 2 study to assess the safety and efficacy of PAC-14028 cream in children with atopic dermatitis.

Inclusion Criteria:

• Male and female patients aged 24 months - 12 years
• Who was diagnosed with Atopic Dermatitis according to Haniffin and Rajka criteria, whose affected BSA is over 5% and IGA score is 2 (mild) to 3 (moderate).
• Who has applied stable amount of emollients daily before baseline visit
• Who voluntarily agreed to participate in the study and signed an informed consent form.

Exclusion Criteria:

• Who has skin diseases other than atopic dermatitis or scar in the affected area which can affect the study, determined by the study investigators.
• Who has clinically significant medical history or diseases involving liver, kidney, neurological system, psychial disorder that can affect study results.
• Who has used systemic steroids, antibiotics, immunosuppressants, or received photochemical therapy within 28 days before study drug administration.
• Who has used topical steroids, immunosuppressants or antibiotics to treat atopic dermatitis within 14 days before study drug administration.
• Who has used or is expected to inevitably use prohibited concomitant medications during the study.
• Women who is pregnant /breast-feeding, or who has childbearing potential and does not use available contraceptives.
• Who has dosed other study medications within 30 days before screening.
• Who is determined ineligible for study participation by investigators for any other reasons.