Learn a bit of common sense of self-help before you start, and you can save yourself or others in traveling.

On the way, if you are bitten by a poisonous snake, you must not panic or run, so as not to accelerate the absorption of toxins because of the acceleration of blood circulation. The right way is to immediately tie the wound close to the side of the heart with rope or trouser belt; loosely bind every three minutes, in one to two minutes, to prevent limb necrosis.

Two, once a thunderstorm is encountered in the field, if you find a lightning flash, it means that you are in a minefield. You should avoid gathering with many people at the moment. You should immediately look for a low-lying place to crouch, put your feet together, put your hands on your legs, and bury your head between your legs. Cut away from independent trees, Guta, poles, isolated cabins. Do not swim or boating in the water. In the storm, there are ants walking and feeling in the head, neck and hands. The hair is upright, indicating that there will be a lightning strike. You should quickly lie down and take the metal ornaments and hairpins that you wear.

When three cases of acute sprain occur on the way, avoid local massage or hot compress after returning to the hotel, it is best to stop the activity and apply cold compress for 20 to 30 minutes after returning.