Hydroquinone cream is suitable for the treatment of freckles, chloasma and post-inflammatory hyperpigmentation, the correct usage is topical application, take an appropriate amount of the drug and apply it on the discoloration, by inhibiting the metabolism of the melanocytes, it will cause the skin to produce reversible discoloration. Adverse reactions such as local allergy and burning sensation may occur after topical application of hydroquinone cream, skin test should be conducted before using the drug, if itching, blisters and other phenomena occur at the site of the drug, the drug should be washed off immediately and discontinue the use of the drug, and the product should not be used for discoloration of the eyes and wounds. It is forbidden for those who are allergic to the product, pregnant women, children under 12 years old or when the cream is discolored. If you want to know the correct use of hydroquinone cream, it is recommended to go to a regular hospital to consult a doctor, follow the doctor’s instructions to use the drug, and not to use the drug without authorization.