NHS hospitals in England dealt with 20,320 admissions for allergies in the 12 months to February 2014; an 8% increase over the previous year.
Figures from the Health and Social Care Information Centre (HSCIC) show previously admissions for allergies increased from 18,860 during 2013.
The rate of admissions for allergies for both genders is highest in those aged 0-4 and it is higher in males than in females in this age group.
HSCIC said the rate for both genders generally decreases with age with a higher rate of admissions in females than in males in older age bands.
The report also shows that 62% (12,560) of admissions due to allergic reactions were emergencies, a 6% increase (730) on the same period last year (11,830).
Nearly one in five (4070) of admissions were for anaphylactic reactions, an increase of 10% (370) from the same period last year.
Prescribing information for the 12 months to February 2014 shows that the rate of prescribing emergency adrenaline products was 353 per 100,000 head of the population, one item per 283 people.
Kingsley Manning, chair of the HSCIC, said: "The statistics we are publishing today provides fresh insight into hospital admissions for allergies, which have increased by almost eight per cent in the last year.
"In the 12 months to February, 61.8 per cent of all allergy related hospital admissions were emergencies, a rise of just over six per cent.
"This vital information on allergy admissions in England paints a clear picture for policy makers of the scale of hospital in patient care for these conditions."