Hello.
You could have an allergic reaction to the particular flowers. The best treatment for such an allergy is avoiding the allergen, that is avoid being in the vicinity of the flowers. You can also consult your GP about any allergy tests and treatments available. Talk with your wife this.
Take care.
Abhijeet Deshmukh, MD
(This post is for the purpose of providing medical information and is not a substitute for a face-to-face consultation with a doctor. This post is not intended to give or rule out a diagnosis, create a doctor-patient relationship or replace an existing one. I am not able to diagnose medical conditions online. Please consult with your doctor or a qualified healthcare provider for diagnosis and treatment options)