Several allergies have dizziness as one of their symptoms. The main connection between allergies and motion sickness is that many conditions affect the ears and the Eustachian tube within them, which is important in helping the body maintain balance. Dizziness can also be the result of the body working overtime to protect itself from allergens. Treating ear pressure and chest and nose congestion can relieve allergies and dizziness caused by them.
Allergies often affect the proper function of the Eustachian tube, which regulates balance in the human body. The tube connects the middle ear to the pharynx, which is a part of the throat. When working properly, the Eustachian tube drains mucus from the middle ear. If the tube swells due to allergies, mucus becomes trapped and can no longer equalize pressure in the area and thus maintain balance in the body. This is a common connection between allergies and motion sickness.
When the immune system is attacked, it goes into protection mode. An overwhelming attack, such as when the air is suddenly filled with allergen-containing particles, can be so shocking to the body that it essentially goes into overdrive trying to fight off the intrusion. The double shock of allergens and the body's strong reaction to them can lead to dizziness.
Some of the symptoms associated with allergies and motion sickness include vertigo, shortness of breath, dizziness, and confusion. Low blood pressure is also common. It is important to treat these symptoms while they are still mild. If ignored, dizziness associated with allergy can lead to anaphylaxis, a severe allergic reaction that can be fatal.
There are several methods that can be tried to relieve motion sickness caused by allergies. Antihistamines, decongestants, and nasal sprays can relieve congestion and unblock the ears and nasal passages, helping the body balance itself more effectively. Inhaled steroidal corticosteroid may also help relieve symptoms.
Dizziness associated with allergies is best avoided by avoiding the allergens that cause a reaction. With food allergies, the items in question should be avoided entirely. If the condition stems from particles in the air, an air purifier can prevent both allergies and the motion sickness associated with them. Since pollen allergies are a common cause of illness, avoiding spending too much time outdoors during months when pollen counts are high can also help. Keeping your environment clean and dust-free can also prevent some allergy-related discomfort, including motion sickness.