Start with high-confidence allergies books, then narrow by subgenre or adjacent topics.
The Allergy and Asthma Cure
Fred Pescatore M.D., Fred Pescatore
The Mold Survival Guide
Jeffrey C. May, Connie L. May
Sinus Survival
Robert S. Ivker, Todd H. Nelson
Herbal Formularies for Health Professionals, Volume 5
Jill Stansbury, Dr. Jill Stansbury
