NOTICE: FDA expanded the use of a booster shot for COVID-19 vaccines in certain populations và authorized a single booster shot for Moderna & the Johnson và Johnson/Janssen vaccine. The Advisory Committee on Immunization Practicesis meeting on Thursday, October 21, khổng lồ discuss its recommendations for COVID-19 booster shots.

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COVID-19 vaccination will help protect you from getting COVID-19. You may have sầu some side effects, which are normal signs that your body toàn thân is building protection. These side effects may affect your ability lớn vì chưng daily activities, but they should go away in a few days. Some people have sầu no side effects.

Serious side effects that could cause a long-term health problem are extremely unlikely following any vaccination, including COVID-19 vaccination. Vaccine monitoring has historically shown that side effects generally happen within six weeks of receiving a vaccine dose. For this reason, the FDA required each of the authorized COVID-19 vaccines to be studied for at least two months (eight weeks) after the final dose.

Common Side Effects



If you had a severe or immediate allergic reaction after getting the first dose of an mRNA COVID-19 vaccine, you should not get a second dose of either of the mRNA COVID-19 vaccines. Learn about getting a different type of vaccine after an allergic reaction.

Helpful Tips to lớn Relieve sầu Side Effects

Talk khổng lồ your doctor about taking over-the-counter medicine, such as ibuprofen, acetaminophen, aspirin, or antihistamines, for any pain & discomfort you may experience after getting vaccinated. You can take these medications to relieve sầu post-vaccination side effects if you have no other medical reasons that prevent you from taking these medications normally.

It is not recommended you take these medicines before vaccination for the purpose of trying to prsự kiện side effects.



If You Received a Second Shot

Side effects after your second shot may be more intense than the ones you experienced after your first shot. These side effects are normal signs that your body toàn thân is building protection và should go away within a few days.

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If You Received a Booster Shot

Side effects people report after getting a booster shot are similar to side effects after the 2-shot series. The most common side effects after a booster shot are fatigue and pain at the injection site and overall, most side effects were mild to lớn moderate. Like the 2-shot primary series, serious side effects are rare, but may occur.

When khổng lồ Hotline the Doctor


In most cases, discomfort from pain or fever is a normal sign that your body is building protection. Liên hệ your doctor or healthcare provider:

If the redness or tenderness where you got the shot gets worse after 24 hoursIf your side effects are worrying you or bởi not seem khổng lồ be going away after a few days

If you get a COVID-19 vaccine and you think you might be having a severe allergic reaction after leaving the vaccination site, seek immediate medical care by calling 911. Learn more aboutCOVID-19 vaccines & rare severe allergic reactions.


Side effects can affect your ability to vày daily activities, but they should go away in a few days.The Pfizer-BioNTech COVID-19 Vaccine và Modermãng cầu COVID-19 Vaccine both need 2 shots in order khổng lồ get the most protection. You should get the second shot even if you have side effects after the first shot, unless a vaccination provider or your doctor tells you not to get it.Millions of people have received COVID-19 vaccines, & no long-term side effects have been continues to lớn closely monitor the safety of COVID-19 vaccines. If scientists find a connection between a safety issue & a vaccine, FDA và the vaccine manufacturer will work toward an appropriate solution to address the specific safety concern (for example, a problem with a specific lot, a manufacturing issue or the vaccine itself).

If you are fully vaccinated, you can participate in many of the activities that you did prior lớn the pandemic. Learn more about what you can bởi when you have sầu been fully vaccinated.

If you would like khổng lồ report an adverse sự kiện, side effect or reaction from the COVID-19 vaccine, please use the following link: icon

What to lớn Expect after Getting a COVID-19 Vaccine

Fact sheet for healthcare workers to give after vaccination.

File Details: 199 KB, 1 page

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Content source: National Center for Immunization & Respiratory Diseases (NCIRD), Division of Viral Diseases
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