The appearance of hard lumps in the area of the new crown vaccination is generally considered to be caused by adverse reactions.
Vaccination of new crown vaccine is an important means of preventing and controlling the new crown epidemic, although the overall safety of the new crown vaccine is relatively good, but the vaccination of the vaccine may cause some adverse reactions, vaccination of the local hardness is a relatively common one, the emergence of this adverse reaction is often the vaccine contains components of the local muscular tissue caused by stimulation, or part of the liquid is not absorbed caused, generally do not need special treatment. Special treatment is not required.
In addition, if redness, swelling and pain occur along with localized nodules, it is necessary to consider the occurrence of localized infections, and it is recommended to consult a physician in time for treatment.
The appearance of localized nodules after vaccination is a very common adverse reaction, which usually subsides by itself. However, if the nodules are accompanied by other uncomfortable symptoms, which are not relieved for a long time or continue to aggravate, please consult a doctor in a timely manner.