Immune deficiency and IVIG

I am new here and need some help. I just found out the reason I am getting pneumonia all the time is because of my low immunoglobulin levels. I am 37 with two small children and feel like I need more answers. I have now gone in for IVIG infusions to get other people's antibodies. I seems like I was healthy until a few years ago I started getting Staph infections, started the Antibiotic cycle, found essential oils for my Staph (worked great) then I started getting pneumonia infections every time I got a cold and have had a chronic cough for a couple of years. I also have gotten pityosporum folicutlits and need to treat that with Sulpha drugs. I want to find some answers before my immune system lets me down so much I get even more serious diseases. I need to be here for my little girls and will do anything. I am desperate for some answers besides more Antibiotics (I am on Levaquin every couple of weeks for prevention of pneumonia if I catch a cold, which is every month. ANYONE???? Can anyone help me. My doctor says there is no other answer besides the infusions that are very very expensive and quite frankly a little disgusting to me. My levels are 300 most people are 700-1700. I take Kratom regularly would that have ANYTHING to do with this?????? Tweet