The muscle under the thumb of the palm is the intermuscular group of the big fish, the symptoms of soreness, may be due to excessive fatigue, you can improve the symptoms through hot compresses, massage, muscle stretching and other methods. 1. Hot compresses: hot towels or hot water bags can be taken to the interosseous muscle group for hot compresses. Can be carried out 2 to 4 times a day, each time 20 minutes, can accelerate the intermuscular group of blood circulation, relieve the symptoms of muscle pain. 2. Massage: you can take the massage technique, that is, from the root of the palm along the intermasseteric group of muscles along the direction of massage, so that the intermasseteric group of muscles, get fully relaxed, can quickly relieve the symptoms of intermasseteric group of soreness. 3. Muscle stretching: the thumb of both hands at the end of the knuckles and support each other forcefully, for the intermuscular group of the big fish muscle stretching, to lift the intermuscular group of the big fish muscle stiffness and spasm, to improve the symptoms. If it is difficult to relieve the symptoms, it is recommended to consult a doctor in time and follow the doctor’s instructions.