Foam balls should be removed promptly after they have been inhaled through the nostrils. You can gently blow your nose to promote sneezing and seek professional medical help to remove them using instruments. After the foam ball is sucked in through the nose, you can gently blow your nose, or you can use a piece of hair to stimulate the mucous membrane of the nasal cavity to promote sneezing, and if it is not removed you should seek medical attention and professional doctor’s help. Doctors will use professional equipment to remove the foam ball, such as using the head end of the hook or ring-shaped instrument, gently enter from the front nostril, around the foam ball back to the front hook out, or the application of suction will be sucked out of the nasal cavity foam ball. Do not use tweezers to take out the foam ball at home by yourself, to avoid the foam ball slipping off or pushing into the nasopharynx of the posterior nostril, or even causing a foreign body in the trachea, and it is recommended to consult the hospital in time for active treatment.