Yes, allergies can cause dizziness in some people, although this is not the most common allergy symptom. This can happen when allergies affect the ears, especially the Eustachian tubes, which help balance pressure in the middle ear.
During an allergy flare, swelling, congestion, and mucus can make these tubes work poorly. This may lead to ear pressure, muffled hearing, fullness in the ears, imbalance, dizziness, or sometimes a spinning feeling called vertigo. Allergies may also worsen symptoms in some people with inner ear conditions, such as Ménière’s disease, but the evidence is not strong enough to say allergies are always the direct cause.
Dizziness related to allergies may happen around pollen season, after exposure to dust, mold, pets, or other triggers, or when nasal congestion and ear pressure are noticeable. Other causes of dizziness are also possible, so it should not automatically be blamed on allergies.
Avoid self-medicating, especially with medicines that can cause drowsiness or worsen balance. An ENT specialist or allergist can help if dizziness is frequent, severe, linked with hearing changes, or not improving.