In essence, these problems, along with hay fever and urticaria (nettle rash) are all part of a single disease, sometimes called "atopy". Most sufferers have a family history of similar problems, indicating that there is an important genetic component. And most people have had this, or a related problem, since childhood. We cannot alter that, but we can do three things:
1. Help you to identify and deal with any allergies, by avoidance and diet planning, and laboratory testing if necessary.
2. Desensitisation [see EPD] can reduce the symptoms of all these problems, and help to keep them under control in the long-term.
3. The careful use of nutritional supplements can often help to reduce the symptoms significantly.