I am so sorry and very worried for you. I got bacterial meningitis of my brain from chronic sinusitis in May 2014. The organisms were pseudomonas and mrsa. I received kerosene daptomycin flatly many cephalosporins. Antibiotics of last resort. A craniotomy was done to remove abcess in my left temporal lobe. I was septic in multi organ failure intubated on a vent in medically induced coma. My heart stopped and I was coded. I use a sinus rinse like you with 1/4 teaspoon of white vinegar. I found out 13 arms of my immune system were deficient. I got 5 years of allergy shots plus various vaccines to bolster my immune system. I was hospitalized for 30 days then discharged to a nursing home. I barely missed being admitted to long tetm acute care because my bacterial load was high and the staff were unsure if it would go down . I was 53. Today I am 64. I run an air purifier 24/7 I filter my water. I had to pull many chemicals from my life style. I walk talk drive. I have 2 pitbulls who are my legal ESAs. I married again left my life long home state and moved to NM. I have ptsd. I had a lot of medical care after discharge from nursing home. Many prescriptions were tapered down in dose and stopped as my health improved. I have a seizure risk from the craniotomy but have remained seizure free. One of the hardest parts of my recovery was realizing I was a codependent never said no had no boundaries My famiky was dysfunctional so I was taught patterns of behavior that lead to me wearing myself out. I am a retired nurse. Was RN. I wore myself out caring for my first husband who was a online porn addict. Yes I had a lot of therapy too. It is important to me to remember I count and I matter. My last sinus infection was 2015. I thought I had another infection in 2016 . My ENT did a culture. Said all clear. I had to take care of dental issues too. Now I get dental cleanings every 4 months. I am a good house cleaner now so I can minimize my exposure to allergens. I use a hepa vaccuum with an enclosed dust bag..Do have an ENT doctor? An allgerist- immunologist? My experience and recovery is extensive but this whole experience was worth it. It was life changing. Take care of you. I advise exhausting every avenue to stop your infection before it is too late. Interestingly my paternal grandfather was hit in his head developed epilepsy and died at age 43.