Sunscreen SPF for Asian skin should be 15 to 30. The method for application of sun block should be as follows -
1. Wash your face (a must) before applying the sun block.
2. A minimum of five ml cream is required which may be applied in single or in divided doses before 8am daily. Do not forget to apply cream to other exposed parts of the body. If sunscreen lotions are applied the right way, conditions like sun allergy and Melasma can be prevented. However, if the irritation persists, please consult a good dermatologist.