Nimesulide is a nonsteroidal anti-inflammatory drug. Has anti-inflammatory, analgesic and antipyretic effects. Its side effects can be used correctly with reference to the instructions. However, the pain in both sides should be considered whether there are other obvious symptoms, and it is not possible to take nimesulide alone. General hepatobiliary damp-heat syndrome, disharmony between liver and stomach or stagnation of liver qi may have corresponding symptoms, which must be dialectical and clear before the right medicine can be given. Suggest or refer to the following drugs: Xiaochaihu Granule, Qinggan Lidan Oral Liquid, Shugan Pill or Jigucao Capsule. If the symptoms can't be improved or get worse, it's best to go to the hospital. Never delay the illness! It is recommended not to use this non-steroidal anti-inflammatory drug. Fenbid or Jin Kang Puli can be used, but it is best to go to the hospital to find out what causes it. Eating painkillers indiscriminately will cover up the illness. Finally, I wish you good health.