Use a large sieve with dense holes.
Pour a dose of medicine into it
Then put the sieve in the enamel basin.
Then connect it to the faucet.
Rinse with water
Shake and wash.
Remember it's a flush.
Don't empty the water in the basin.
After washing, pour the water and dregs back into the sieve.
Then pour the medicine into the enamel basin.
water
Just no medicine.
Soak for more than half an hour before cooking.