Just sharing - this is what (or very similar to) doctors are claiming are attacking young children in New York. There's very little definitely known about this condition, but when you google it, possible causes are exposure to chemicals and skin irritants.
Many years ago a neighbor child was diagnosed. It was when anti-bac soaps were first released, and the parents were a bit OCD, using TONS of harsh chemical cleaners inside the house. Child was never feeling well, so was kept indoors a lot. The parents had to switch to using all natural cleaners like baking soda, vinegar, etc.
I imagine these Covid-19 positive kids are being locked up inside a well insulated home, little fresh air flow, parents doing double duty with commercial harsh cleansers, antibacterial soaps, hand sanitizers, etc. Kawasaki disease involves inflammation of the mucus lining of organs and blood vessels, including the lymph nodes. Remember: anything touching our skin absorbs into our bloodstream. Anything smelled might cross the blood brain barrier and affect our brain and nervous system. Anything eatten can affect our gut biome. Breast cancer survivors who have lymph nodes removed must wear gloves to protect themselves against chemicals, even dish soaps. And doing something as simple as mixing a bleach based cleaner with an ammonia based cleaner can instantly create a gas that can kill you (also pretty instantly).
Switch to natural cleaners, get the kids outside, or at least open the windows and let the stink blow out for awhile! (PS: If this was only caused by 5g, wouldn't ALL the kids, and parents too, be affected?)