What should be avoided when applying liquid medication?

When applying liquid medication, poor visibility should be avoided because it can lead to mistakes in dosing or application. Proper visibility ensures that the medication is administered accurately, allowing the individual to see how much is being used and to ensure it is applied to the correct area. Inaccurate application due to poor visibility can result in an ineffective treatment or potential harm if too much is used or if it is improperly directed.

Maintaining clear visibility supports the overall safety and effectiveness of medication application. While the other factors like a flat surface, angle, and body contact are also considerations, the emphasis on visibility is crucial, as it directly influences the ability to correctly gauge and apply the medication.