Home Health What should we keep in mind after being given the vaccines?

What should we keep in mind after being given the vaccines?

give hep b vaccine
give hep b vaccine

One of the most important medical acts that take place in the pediatrician’s office is the vaccination of the baby. As the WHO says, vaccines save lives, are a fundamental right, although unfortunately not accessible to all, and are profitable because they are safe, effective and inexpensive.

In the review of the two months is when the babies receive their first vaccines, usually the hexavalent vaccine and that of meningitis C, and it is done at that age because the ideal would be to do it as soon as the baby is born, but then they would be useless because the Baby would not make the necessary defenses as a result of the vaccine. Once the vaccines are placed, many parents do not know what they have to take into account afterwards. That is why today we are going to try to respond to that concern by answering the question: What should we keep in mind after the vaccines are given?

Should you eat differently or at other times after the vaccines?

The vaccines introduce in the baby one or several molecules that stimulate the reaction of the immune system so that it learns to defend itself of them in case one day the virus really arrives . Although it is something more intense than in everyday life, it does not stop being something that happens to the baby every day, when particles and microorganisms arrive from the outside that it breathes or sucks (when it touches things or picks it up and puts it in the mouth), as it is continuously exposed to new molecules.

With this I mean that in reality, although vaccines have more side effects than most things that can get you into the day to day (unless you get a virus), you should not change your diet or the feeding schedules . Simply, continue to give what you drink (breast milk or artificial) on demand, as usual.

What side effects can the vaccines cause?

Between 15 and 20% of vaccinated children may suffer an increase in body temperature, which may end up in a low-grade fever, may be fever and, in 2% of these children, may reach 39 ° C. In case of fever (temperature above 37.5 ° C in the armpit) it is recommended to give the child some antipyretic, usually paracetamol , since ibuprofen is not indicated until they are older. To know how much paracetamol corresponds to your baby according to weight, you can read this post in which we explain how to calculate it.

In this regard, there are pediatricians who recommend giving acetaminophen as a preventive, that is, after vaccination, give a paracetamol shot in the afternoon, whether or not there are symptoms. A priori, it is not a recommended measure , since it has been seen that doing so could diminish the immune response to vaccines, being better to give it when there are already symptoms of fever (if they arrive).

If the baby does not get a fever, but a few tenths, it is recommended to take physical measures that help him to be more comfortable, such as having him home with little clothes, a long bath and, in short, follow one (or several) of the eight home remedies to lower the fever that we discussed a while ago.

The fever may come at different times, depending on the vaccine administered. In the case of two months, which are not live attenuated virus, the fever may reach 6-7 hours since the vaccine is given to the baby and may last between 24 and 48 hours. In the case of vaccines with live attenuated viruses, such as the viral triple of 12 months, the fever arrives between 5 and 10 days, generally, it tends to last the same in time (one or two days) and this may be something Higher

Other common symptoms are irritability and local pain and swelling in the area of ​​the puncture. In the first case it is recommended to take care of the child, take him, give him a lot of love and try to do the usual thing when the baby cries (feeding, walking, rocking, singing, etc.). In the second case, local cold can be applied to reduce the swelling.

In principle they are normal symptoms that do not require a visit to the pediatrician, unless the fever is very high (reach 40ºC) or there is some unusual reaction, both to rule out that it is related to the vaccine (in case the child is sick for something else and may need some treatment) to, if it is, try to remedy the symptoms and make the declaration of adverse reaction to the vaccine, which must reach higher levels.

Once vaccinated, are you protected from these diseases?


One of the doubts of some parents is whether once the baby has already been vaccinated is protected from all diseases for which it has been vaccinated. The answer is a simple and little clarifying “more or less” or a “depends”. Vaccines are not infallible and even if a baby is vaccinated for all doses of a vaccine, it is possible that he or she will take the vaccine anyway. This depends on your immune system, the number of doses of a vaccine that you have (two months later, 7 vaccines are given, but the 7 must be repeated again later so that the baby can take more defenses towards those same 7 viruses) and it also depends on the vaccination coverage.

This of the vaccination coverage is the way of giving name to the percentage of population that is vaccinated of the same. Normally, because they are the most contagious and the most contagious, we talk about vaccination coverage in children. The higher it is, the better. If a vaccine has a vaccine coverage of 90% or more (10% or less of the children do not carry the vaccine), the risk to both the vaccinated and the unvaccinated is very low. There are so many children vaccinated, that is, protected, that it is very difficult for a child to catch one of the viruses that have been vaccinated and, if infected, it is very difficult to transmit it, because he will find that most of the children around you are also vaccinated.

On the other hand, if that hypothetical child lived where the vaccination coverage is 50%, to say one number, the risk of infection is much higher and all children, both vaccinated and unvaccinated, would be at risk. And of the vaccinated, those who take a few doses, such as 2 months of age, who only carry one, would have more risk than those who already carry several of the same vaccine.


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