After playing the new crown vaccine, the arm is a bit sore. What is going on?

As of now, the city's new crown vaccine has been vaccinated over 50 million doses.Some people report that the vaccine is sore, and some people say that there is a hard piece to feel.What is the situation?What to do?

If the symptoms are mild in the above two types of allergies, they can generally heal themselves without treatment. If the symptoms are heavier or continue, they need to go to the hospital for treatment. The doctor will use anti -allergic treatment according to the actual situation.

Edit: Wen Qian Ting Ting

Data: Shanghai Disease Control

*Reprinted, please indicate the official WeChat from Shanghai Yangpu

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