Can Allergies Cause Swollen Lymph Nodes?

– Can Allergies Cause Swollen Lymph Nodes? –

Is it common for your child to have swollen lymph nodes? Do you think it’s because of food allergies, seasonal allergies, or pet allergies? If that’s the case, you’re not alone. In this article, you will get the answer to, can allergies cause swollen lymph nodes.

Can Allergies Cause Swollen Lymph Nodes

Swollen lymph nodes and allergies are both unpleasant, although they are usually unrelated. When your immune system reacts inappropriately to a harmless substance, you develop an allergy.

An allergen is a chemical that causes allergies. Lymph nodes are lymph nodes that are part of your immune system and contain cells that fight infections rather than allergens. As a result, allergies rarely cause lymph node swelling.

What are Lymph Nodes?

What are Lymph Nodes?

These are little bean-shaped structure that is part of the immunological system of the human body. Lymph nodes contain lymphocytes (white blood cells) that assist the body fight infection and sickness.

This fighting is done by filtering things that move through the lymphatic fluid. Hundreds of lymph nodes can be located all over the body. They are linked together via lymphatic vessels.

The neck, axilla (underarm), chest, belly, and groin all include lymph node clusters. In the axilla, for example, there are roughly 20-40 lymph nodes. Also known as the lymph gland.


What Causes Swollen Lymph nodes?

What Causes Swollen Lymph nodes?

Swollen lymph nodes can be caused by a variety of factors. An infection, such as a viral infection, is the most prevalent cause.

Immune cells become activated when they detect infection and prepare to fight it. The lymph nodes may expand and become painful as a result of this stimulation.

The lymph nodes return to normal size as the immune system tackles the illness. Because there are other less common causes of lymph node enlargement, speaking with your child’s doctor is always a good idea.

Your doctor will most likely examine your youngster and ask questions about how long they’ve been larger before deciding what to do next.

Can Allergies Cause Swollen Lymph Nodes

Can Allergies Cause Swollen Lymph Nodes

Swollen lymph nodes are not caused by allergies. They are frequently connected with infection, such as an upper respiratory virus, therefore this is an important symptom to investigate.

Seasonal allergies, pet allergies, and dust allergies, like illnesses, can produce a runny nose, congestion, and sneezing.

Swollen lymph nodes and fever are not caused by allergies, but they can be caused by infections.

Other Things to Know

Swollen lymph nodes are not caused by food allergies. People with food allergies who avoid their allergens do not have swollen lymph nodes, and swollen lymph nodes are not a symptom of an allergic reaction.

People are sometimes concerned that drinking milk causes mucus production, which families may ascribe to the cause of a cold.

Milk has not been proven to induce increased mucus production or to be linked to upper respiratory infections, hence it is not a cause of lymph node swelling.


Some Symptoms

Can Allergies Cause Swollen Lymph Nodes

Swelling is the most common symptom of a reactive lymph node. The lymph node’s surrounding area may swell as well.

Hundreds of lymph nodes exist in the body, and they swell most frequently around the neck and around the face, along the groin, and under the arms.

When lymph nodes enlarge as a result of an illness or injury, the swollen lymph node is usually identified as:

  • smaller than 1.5 centimeters (cm) in diameter
  • movable
  • soft

Usually, the swelling is limited to a single lymph node or a group of lymph nodes. A person with several enlarged lymph nodes across the body may be suffering from a serious systemic infection or perhaps cancer.

Important Things to Know

Infections or injuries can result in reactive lymph nodes. Other infection symptoms that a person may observe include:

  • fever
  • signs of infection near an injury, such as redness or swelling
  • generally feeling sick
  • pain or tenderness near an injury
  • symptoms of illness

A swollen lymph node may not always indicate a serious infection. Some people’s lymph nodes grow quickly and without causing any additional symptoms.



The following are the most common causes of lymph node swelling:

  • infections, such as skin infections, ear infections, or sinus infections
  • dental health issues, such as a cavity or tooth infection
  • skin irritation, such as from acne or a rash
  • exposure to bacteria or viruses
  • injury or irritation to the skin, such as from recent orthodontic work trusted Source
  • exposure to allergens
  • mononucleosis, a highly contagious virus that can cause many lymph nodes to swell

It’s possible that a person’s lymph nodes enlarge as a result of an immunological illness. The following are some of the less prevalent reasons for enlarged lymph nodes:

Many enlarged lymph nodes might occur when a person has cancer or a serious illness. A solitary lymph node swelling is less likely to indicate a major problem.




The best way to treat swollen lymph nodes is to figure out what’s causing them. When there are no signs or symptoms of infection, the swelling will usually go away on its own.

Antibiotics may be required if an infection causes a reactive lymph node. More serious infections may necessitate a stay in the hospital or the administration of antibiotics via an intravenous needle.

Even for simple infections, people with weakened immune systems may need to stay in the hospital.

If you enjoyed this article and found it helpful, do well to share it with friends and loved ones, and also, you can share your opinions in the comment section. 

FAQs About Can Allergies Cause Swollen Lymph Nodes

1. Can Deodorant Cause your Lymph Nodes to Swell up?

Shaving or antiperspirant use (not deodorants can bring these on).

2. What Causes the Lymph Nodes to Swell?

Infection with germs or viruses is the most common cause of swollen lymph nodes.

3. What Causes my Sinus Glands to be Swollen?

Allergies, hay fever, and other allergic reactions are all examples of allergic reactions.

4. What Causes a Swollen Lymph Node in my Thigh Area?

An injury or a skin infection, such as an athlete’s foot, can create swollen nodes in the groin.

5. Can Swollen Lymph Nodes be Caused by Stress?

Stress can occasionally induce swollen lymph nodes, which are an example of a physical manifestation of mental illness.

6. How Serious is a Swollen Lymph Node?

Swollen lymph nodes that are not painful can indicate a significant condition. In some situations, when other symptoms fade, the enlarged lymph node shrinks.

7. What does it Mean to Find Two Lymph Nodes?

Generalized lymphadenopathy is a condition in which more than one location of lymph nodes is enlarged. Infections (including strep throat and chicken pox), certain drugs, immune system illnesses, and malignancies like lymphoma and leukemia can cause this type of swelling.

8. What’s the Best Way to Treat Swollen Lymph Nodes?

Apply a warm, wet compress to the affected area, such as a washcloth dipped in hot water and wrung off.

9. Can Allergies Turn Into a Cold?

It’s conceivable that you have seasonal allergies if you experience “colds” that start suddenly and occur at the same time every year.

10. Can Muscle Strain Cause Lymph Nodes to Swell?

No, although worried people can picture their lymph nodes swollen even if they aren’t.

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