(2) Reading the instructions, we can see that A can treat and relieve cold symptoms, and B can be used for indigestion and loss of appetite. Xiao Li recently got flu, fever and headache, and should take some medicine.
(3) As can be seen from the instructions, this medicine belongs to internal medicine. Take this medicine every six hours, one tablet at a time, and Xiao Li takes four tablets a day.
(4) In case of drowning or gas poisoning, you must call 120 as soon as possible to take scientific and effective first-aid measures. If people stop breathing in time, the lack of oxygen in the brain and heart will lead to death, so after dialing "120", artificial respiration should be used for first aid. Artificial respiration is a commonly used first aid method to rescue drowning and gas poisoning.
So the answer is: (1) mental health.
(2) Answer
(3) internal medicine; Sipian
(4) mouth-to-mouth blowing method