Warning 1
Only treat areas that your dermatologist has specifically evaluated. For individual brown lesions (Lentigines), the maximum duration of therapy should be 3 months. Lentigines are benign lesions; however, in some cases, they may evolve into skin cancer. Any lesion that persists, recurs or changes in any way (darkening, thickening, and enlarging) should be reevaluated by your dermatologist.
Warning 2
Before using hydroquinone topical, tell your doctor if you are allergic to any drugs, or if you have liver or kidney disease.
