Hydroquinone usually lightens skin within four weeks, although results sometimes takes longer, according to DermNet NZ. Patients should stop using hyroquinone if no bleaching results are visible after three months of treatment.
Hydroquinone slows down the production of melanin, causing darkened areas of skin to slowly fade. Patients should wear sunscreen and avoid excessive sun exposure while using hydroquinone, advises DermNet NZ. Side effects may include minor skin irritations such as itching and redness. Patients should stop using hydroquinone if they experience severe burning, swelling or crusting. Additionally, patients using hydroquinone must avoid using peroxide products. Pregnant or breastfeeding women should avoid the use of hydroquinone.