I only found out myself after studying in Uni 2013. No HK doctors know what exactly is it (seen 12 doctors in 1 year when 11 yrs old, my weight decreased alot). 6:30 Pressure, swollen by infection, bacteria, green mucus. Antibiotics. 7:40 Can also be from destroying the airway linings (bleach house cleaning agents). 8:30 Actually, doctors don't know too🤣. I asked both SG and HK family doctors.
