Do antihistamines help atopic dermatitis?
First-generation H1 antihistamines likely increase cognitive impairment, with cognitive effects differing among second-generation antihistamines.
By
Kathryn Wighton
August 31, 2026
1
Oral antihistamines may not significantly improve disease severity or itch in atopic dermatitis patients.
2
First-generation H1 antihistamines likely increase cognitive impairment and treatment discontinuation due to adverse events.
3
Second-generation H1 antihistamines showed minimal reductions in objective Scoring Atopic Dermatitis scores compared to placebo.
4
No clinically important difference was found for sleep disturbance or atopic dermatitis exacerbations with antihistamine use.
5
The systematic review included 47 trials with 6,230 patients and assessed treatment effects using Bayesian random-effects network meta-analyses.