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The Daily Insight

What are signs of bad allergies?

Author

Rachel Hernandez

Updated on March 10, 2026

Hay fever, also called allergic rhinitis, can cause:
  • Sneezing.
  • Itching of the nose, eyes or roof of the mouth.
  • Runny, stuffy nose.
  • Watery, red or swollen eyes (conjunctivitis)

Keeping this in view, how bad can allergies make you feel?

Allergies can cause all kinds of unpleasant, distracting symptoms, from digestive upsets and headaches to respiratory trouble and runny eyes. However, you may also have experienced another few hallmark symptoms of allergy problems: fatigue, drowsiness, and mental sluggishness.

Furthermore, can allergies make you really tired? Allergies can cause all kinds of unpleasant, distracting symptoms, from digestive upsets and headaches to respiratory trouble and runny eyes. However, you may also have experienced another few hallmark symptoms of allergy problems: fatigue, drowsiness, and mental sluggishness.

Also to know, how do you know if you have bad allergies?

"If the list encompasses fever, greenish or yellow-colored mucus, or joint and muscle pain, then it's more likely a cold," Resnick says. But if you've got sneezing; itchy, red, or watery eyes; clear nasal discharge; or your nose, throat or ears feel scratchy -- then he says you're probably dealing with an allergy.

How do you fight fatigue from allergies?

Your best bet if you want to avoid feeling tired is to take an antihistamine. These medications reduce swelling to temporarily reduce your allergy symptoms. The only way to fully reduce your allergy symptoms is to cut out your exposure to allergens. Be aware that many antihistamines cause fatigue.

Related Question Answers

How do you stop allergies immediately?

Try an over-the-counter remedy
  1. Oral antihistamines. Antihistamines can help relieve sneezing, itching, a runny nose and watery eyes.
  2. Decongestants. Oral decongestants such as pseudoephedrine (Sudafed, Afrinol, others) can provide temporary relief from nasal stuffiness.
  3. Nasal spray.
  4. Combination medications.

Can allergies give you body aches?

Allergic reactions can cause inflammation, which can lead to joint and muscle aches. Chronic body aches may be a sign of an immune system reaction, such as arthritis, but also can be a sign of allergies. Repeated coughing or sneezing as a result of your allergies can also cause soreness.

Can allergies cause chills and body aches?

Cold symptoms can seem like seasonal allergy symptoms. Flu symptoms usually involve fever, chills, and body aches, however. Seasonal allergies can be caused by tree, grass or weed pollen. They can worsen over time, and you can get new allergies as an adult.

How do seasonal allergies make you feel?

Itchy, watery eyes, a tickly throat, and a stuffy, runny nose can make you dread springing ahead—and falling back. Likely triggers include tree pollen, grass, mold, and ragweed. Whatever the cause, allergies can make you feel miserable.

How do you tell if it's cold or allergies?

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Symptom Cold Allergy
Sore throat Usually Rarely
Runny nose Usually Usually
Stuffy nose Usually Usually
Fever Sometimes Never

How do I find out what I'm allergic to at home?

By taking samples of the dust around your home, you can receive a detailed report telling what allergens are in your home. The kit in conjunction with blood testing can tell you what allergens need to be removed from your home.

Can you suddenly develop an allergy?

Allergies can develop at any point in a person's life. Usually, allergies first appear early in life and become a lifelong issue. However, allergies can start unexpectedly as an adult. A family history of allergies puts you at a higher risk of developing allergies some time in your life.

Do you cough with allergies?

Allergy symptoms range from mild to severe and can occur seasonally or be present year-long. In patients with asthma, allergies can cause a cough, wheeze and shortness of breath.

How long do pet allergy symptoms last?

Immune Reaction

With a dog allergy, one or more dog allergens trigger reactions by allergy cells like mast cells and basophils using an antibody called immunoglobulin E (IgE). This is a temporary reaction, lasting between a few minutes to a few hours.

What are the 10 most common allergies?

Nine of 10 food allergies can be blamed on eight foods:
  • Soybeans.
  • Peanuts.
  • Milk.
  • Wheat.
  • Eggs.
  • Fish (bass, flounder and cod)
  • Shellfish (crab, crayfish, lobster and shrimp)
  • Tree nuts (almonds, walnuts and pecans)

How do you find out what allergies you have?

Skin prick testing is one of the most common allergy tests. It involves putting a drop of liquid onto your forearm that contains a substance you may be allergic to. The skin under the drop is then gently pricked. If you're allergic to the substance, an itchy, red bump will appear within 15 minutes.