I have bad allergies. if allergies are caused by overactive immune system, why do i get sick so easy? 2 staph, sinus infect, hpv, many colds & flu.

Good question: allergy causes inflammation of mucus membranes /skin, this inflammation invites bacteria which colonize sinuses, skin and other areas causing chronic infection with frequent flare-ups, sometimes with the allergy there could be a subtle defect in the complex immune system which adds to the problem, you need to see a qualified allergist/immunologist for management,keep follow up with your doctor/ENT