Hand sanitizer or hand washing?

Câu hỏi:

Nếu tôi sử dụng nước rửa tay khô, tôi có cần phải rửa tay không?

Trả lời:

Hand sanitizers do not replace hand washing because they cannot remove dirt, grease, or other debris from the skin or nails. For this reason, hand washing with liquid soap and warm running water is the preferred method. However, the use of a hand sanitizer following proper hand washing can add an extra measure of protection.

If used more than 10 times per day, they can dry the skin so be sure to use a high-quality hand moisturizer at least once per day.