Rhinitis Treatment Care

I have all three!! I had eczema a few years ago i spent months off school in and out the hospital, I have always had mild asthma which has gotten worse recently and I have had perennial rhinitis since as long i as remember. How are these conditions linked and what is the underlying cause of them?

i’ve got eczema and hay fever. does that mean I have a high risk of having asthma? x