Salicylix SF 6% Ointment is not suitable for treating dark circles under the eyes. It contains salicylic acid, a strong peeling agent used for conditions such as thick or scaly skin, including psoriasis, corns, or calluses. The skin around the eyes is very delicate, and applying this ointment there may cause irritation, burning, redness, or even skin damage. Dark circles can result from pigmentation, genetics, lack of sleep, allergies, stress, or eye strain, and treatment depends on the underlying cause. Maintaining good sleep, adequate hydration, stress management, limiting screen time, and avoiding excessive eye rubbing may help reduce worsening dark circles. Since your dark circles have been present for 4–5 years, it is best to consult a dermatologist for a proper evaluation and safe, specifically designed treatment options for the under-eye area.