Ms. My experienced intense itching in the late afternoon and evening, with hives spreading across her limbs. Believing it was a food allergy, she avoided seafood, beef, and eggs. Her meals consisted only of white rice, soy sauce, and boiled vegetables, yet the itching did not subside. Dr. Nguyen Phuc Tan, from the Department of Clinical Immunology at Tam Anh General Hospital, HCMC, diagnosed Ms. My with chronic hives and adrenal insufficiency stemming from an immune disorder, caused by prolonged use of allergy medication containing corticosteroids.

According to Dr. Tan, many people with persistent hives mistakenly believe the itching is due to food allergies. However, most cases of chronic hives are not linked to a specific allergen but rather to an immune disorder. Consequently, extreme dietary restrictions do not resolve the condition. Instead, they can lead to physical exhaustion, weakness, susceptibility to complications or other illnesses, and reduced treatment efficacy.

Dr. Tan examines and advises Ms. My on treatment. Photo: Tam Anh General Hospital

Ms. My frequently used allergy medication containing corticosteroids whenever the red patches spread across her body. This can lead to adrenal suppression, affecting the gland responsible for producing vital hormones that help the body adapt to stress.

Dr. Tan developed a phased corticosteroid dosage reduction plan, avoiding abrupt discontinuation to prevent the risk of acute adrenal insufficiency. Concurrently, the patient transitioned to a more suitable hives treatment, prioritizing safe medications for long-term control, combined with nutritional adjustments to restore her physical condition. She adopted a full, balanced diet, only excluding foods that clearly triggered reactions.

After over one week of treatment, the itching attacks gradually decreased and were no longer as frequent. The patient's physical condition improved, she ate better, and her spirits stabilized.

Dr. Tan advises patients not to self-diagnose every itchy condition as an "allergy". If the condition persists for more than six weeks or recurs frequently, it is essential to seek medical examination for an accurate diagnosis. Incorrect treatment not only prolongs symptoms but also risks systemic complications.

Minh Huong

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