Amoxicillin Rash: Allergic or Non-Allergic Reaction


Amoxicillin is considered to be one of the most popular antibiotics that is prescribed to children experiencing various bacterial infections. However, there are some negative side effects that can be observed in about 5% of cases. You would find that the side effects manifest in the form of a non allergic rash that forms on the abdomen. While it is nothing dangerous, it is important that you do take a close look at an amoxicillin rash. Here is how you can find the characteristics of such rashes on children suffering from it.

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Non Allergic Reaction

The regular side effects of amoxicillin can be observed in the form of a non allergic rash. Such rash is not serious at all and you would find that it would go away on its own. In fact, you would find that it only requires you to keep a close eye on the symptoms of the rash. While most of the amoxicillin rashes are non allergic, some cases of an allergic rash can also arise. If such cases arise, it is essential that you consult a doctor in this regard. Apart from this, amoxicillin rash also has some characteristic features that make it harmless. Usually, it would surface after 3 days of medicine initiation. From the day of occurrence, they should vanish completely in about 6 days. If this does not happen, it is essential that you take the help of your doctor. Your doctor would take a good look at this kind of rash and would suggest some measures to tackle the condition.

Allergic Reaction

In some cases, the amoxicillin rash is allergic and can lead to trouble. Such rash forms immediately after the use of the medication, and can be dangerous for the body. You should immediately take the opinion of your doctor in this regard. Since the rash has come up immediately after taking the medicine, it is definitely not a non allergic rash. The first step that the doctor would take would be related to curbing it by stopping the administration.

If you have allergy then you should notice the below points to find out allergic reaction symptoms of amoxicillin.

  1. Amoxicillin which may diverge in level
  2. Anaphylaxis reactions consist of trouble in breathing from the throat closing up
  3. A brisk heartbeat and giddiness
  4. Allergy from rash
  5. To more severe
  6. Inflammation and inconsequential puffiness of the lips
  7. Critical symbols of anaphylaxis

If you are seeing any symptoms which are shown above then you should immediately discontinue taking the medication. Also, you should contact your health care provider without delay to treat additional reaction.

Determining Dosage

There are several factors for you to choose the right dosage of amoxicillin, such as your age, weight and the current state of the infection. Different types of infections would generally ask for a stronger dosage. Apart from these factors, the current medications that you are taking and other problems you are suffering from are two other factors that would influence the drug’s dosage. It is essential that the proper dosage is given, as an incorrect dosage can lead to an amoxicillin rash which is a side effect of amoxicillin that needs to be handled at the earliest.

Impact of Dosage

Amoxicillin is an important antibiotic that can help in tackling a wide variety of bacterial infections in the body. You would find that these bacterial infections can easily be handled through a correct amoxicillin dosage, and this is why doctors prefer this medicine. It has been observed that the dosage is most effective when it is given orally. The importance of the proper dosage cannot be undermined as it can lead to side effects like rashes. When the dosage is not correct, and the body is not responding well to the medicine, an amoxicillin rash might arise.

Common Side Effects

Now we know the formation of the amoxicillin rash is the biggest side effect of amoxicillin that you can notice. And also they include two parts as we mentioned above, allergic and non allergic. The non allergic one is completely harmless and is a common condition that gets fine after a couple of days. Usually, this type of rash arises after 72 hours of medicine initiation, and tends to stay till 3 days. At the max, it vanishes completely after 6 days. A nonallergic rash does not require any kind of action from your side. You do not even need to stop the amoxicillin dosage as it does not affect the rash in any way. With time, the rash gets better and the condition is resolved. However, the same is not true for an allergic one. It is a dangerous condition that arises due to an allergic reaction to amoxicillin. Such rash arises immediately after the intake of the medicine. In order to resolve such a condition, you would have to stop using this drug immediately. It is essential that you consult your doctor immediately if you suffer from an allergic amoxicillin rash after the use of the antibiotic.

Other Side Effects

Apart from the rash, there are some other side effects. Diarrhea, nausea and vomiting are some of the problems that can arise as side effects of amoxicillin. Not all the side effects are trivial, and a few of them can be quite dangerous too.


The treatment is required in those cases where there is an allergic reaction to the use of amoxicillin antibiotic. Apart from those cases, some nonallergic amoxicillin rashes might also require some kind of treatment. This generally happens when it tends to persist, even after 6 days from the date of occurrence. The regular symptoms are not too dangerous, but when they convert to hives, it is essential that you rush to your doctor for appropriate treatment. In the case of regular rashes, no treatment would be required. For allergic reaction to amoxicillin, you would have to stop the administration of the medication. Those side effects can be cutoff through these steps only. Depending on your condition, your doctor might advise you some other steps for treatment. You should also take some precautions at home in all cases. Drinking lots of water and using oatmeal bath can help in curbing the itching and any problem associated with these rashes.

Start Treating Allergic reaction to Amoxicillin

You should start treating a rash by taking greater than the counter antihistamine, such as Benadryl. Make use of the antihistamine as told or prescribed by your doctor or according to the covering tag. Taking a cold water bath, discontinue using annoying fabrics and limiting perspiration will also help to make your rash normal.

If you or any of your family members are suffering from anaphylactic reaction then contact your health care provider as soon as possible to avoid the allergy of taking amoxicillin. You should also contact your nearby hospital or clinic because in lots of cases taking an epinepherine can stop the allergy.

If you are having anaphylactic allergic reaction then instantaneous checkup consideration is necessary.


When you feel and see any symbols of allergy which looks like anaphylactic then you should contact your emergency health care provider to avoid further reaction and also don’t ever try to treat it with home remedies.

Top Tips:

Some people have experienced this kind of allergic reaction in their earlier period, telling all these kind of details to your doctor or whoever you are going to take treatment from is very essential.  Mostly the hospital or medical health care provider won’t be giving you any kind of penicillin drug to you in outlook.


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