Allergic reactions can manifest themselves in a variety of ways. Here you will find the main symptoms of an allergic reaction.

 Anaphylactic reaction

  • Urticaria
  • Tingling in the mouth
  • Difficulty breathing
  • Respiratory tract inflammation (mouth and throat)
  • Itching in hands and feet
  • Abdominal pain
  • Sickness
  • Vomit
  • General discomfort


  • Nasal congestion
  • Nose and throat itching. Although sometimes they can also be felt in the mouth and lips
  • Redness of eyes, swollen eyelids, and tearing
  • Mucus
  • Constant sneezing
  • Inflammation of the respiratory tract


  • Breathing difficulty
  • Cough
  • Panting breath


  • Acne
  • Redness


  • Dry skin
  • Itchy skin
  • Gastrointestinal disorders
  • Stomachache
  • Sickness
  • Vomit
  • Diarrhea
  • Weight loss for no apparent reason

If you or a family member have experienced any of these symptoms do not hesitate to contact a specialist and perform a FABER test to identify the allergen that produces it. Remember that detecting an allergy is as important as treating it. A specialist will submit you to the appropriate treatment for your condition.


FABER test has been introduced in Mexico by Chronolab Systems.

If your doctor doesn't know us yet, tell him about our website in Mexico:

Contact us for more information:


If you are a doctor and you want to take the sample in your office, send us an email