Friction is a very common cause of blisters, especially on the feet. Wearing properly fitted shoes will help reduce your likelihood of developing blisters on your feet. You can also attach moleskin or special blister prevention tape to the inside of your shoes’ heels, where rubbing often occurs. Moisture-wicking socks are a particularly good choice, as blisters are more likely to develop when your skin is damp. You can also help protect your feet by wearing tights or hose if thick socks are not an option for your outfit. Blisters are more likely to form on the moist skin. You may be able to find a gel or “friction block stick” to apply to areas that are likely to form blisters. These products can help keep skin dry and prevent rubbing.  Try dusting the insides of your shoes and socks with a talc-free baby or foot powder. Avoid talcum powder, since some studies, show it may be a carcinogen. Some powders also have odor-killing agents in them.  You can also try a foot spray to help reduce sweating. Wearing gloves, especially during manual labor such as manufacturing, gardening, or construction, will help prevent the development of blisters on your hands. You should also wear gloves while doing activities such as weight-lifting, which can also cause blisters on the hands. Severe sunburns can also cause blisters. Protect yourself in the sun by wearing protective clothing, hats, and sunscreen lotion. Blistering is a sign of second-degree sunburn. It can take 10-21 days to heal.

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Write a summary of the previous text in Vietnamese:
Mang giày vừa vặn. Mang tất dày để tránh cho chân không bị nổi vết phồng rộp. Giữ cho da khô. Đeo găng tay. Tiếp xúc với ánh nắng một cách thông minh.