Digestive 
Blood
Cardiovascular
Dermatology
Genitourinary,
Hormones
Infections
Oncology and
Musculo-skeletal
Mental health and
Parasites
Respiratory
Senses
Various
There are different types of allergies, but the most common are to:
- Animal hair.
- Mould spores.
- Dust mites.
- Pollen.
- Food.
- Bug bites.
- Medicine.
Most plants that produce allergies pollinate in the spring (although some do so in autumn and winter). The each species’ pollination period is similar from one year to the next, although ambient concentrations of pollen can be very different depending on climatic factors (wind, rain, etc.).
