The safest way is to take the child to the hospital and let the otolaryngologist take out the foreign body.
I once met a neighbor who took a child to seek medical treatment at home. Because there is no equipment to take out the foreign body, it is taken out smoothly with a paper clip.
The specific method is to straighten the first bend of the paper clip. I put a small flashlight in my mouth, put the slightly inclined end behind the foreign body, and then gently pull it forward and inward to take out the foreign body. The prerequisite for the success of this method is that another person will fix the child in a good position.
I am an otolaryngologist, and it is very handy to take out foreign bodies from the nasal cavity in this way. For you, I can only say that you can try. If not, go to the hospital.