First of all, we must solve this problem urgently, because it may affect the use of the whole toilet, and if it is not cleaned in time, it may cause more serious health problems.

Here are some cleaning methods:

1. Use hot water: pour some hot water into the toilet to soften the chocolate, and then use the toilet brush to remove it. This method is simple, but it needs some patience and time.

2. Use soap and hot water: This method is very effective, because soap can help chocolate become soft and easy to take out. Mix some soap with hot water, pour it into the toilet, and then remove it with a toilet brush.

3. Use salt and white vinegar: Salt and white vinegar are very good cleaners, which can help reduce the blockage of pipes and toilets. Mix salt, white vinegar and hot water, then pour it into the toilet, wait for a few minutes, and then clean it with a toilet brush.

4. Use a toilet dredge: If all the above methods have no effect, you can try to use a toilet dredge. Insert the dredger into the toilet, and then perform a certain pressure operation until the chocolate is taken out.

In short, when chocolate is thrown into the toilet, we should not panic, but deal with it calmly. Through the above cleaning methods, we can easily solve this problem and maintain the hygiene and safety of toilets.