Bug Bite

The caster points at a creature they can see within range. That creature will feel as if a bug is biting them on an area of skin of the caster's choosing. The creature must then make a Constitution saving throw. On a fail, if the creature is a humanoid, it is compelled to slap that place with a free hand. If the creature is unable to slap the targeted place because they have all hands occupied, they will drop whatever they are holding in one hand to slap the targeted place. If the creature has all hands restricted, this effect does not apply. If the creature is not a humanoid this effect does not take place. If a creature that failed the Constitution saving throw was maintaining Concentration, they loose it.

This spell automatically fails if casted against creatures with no skin.

(Note: This was my first time making a Homebrew, and this spell was intended as a joke. This was meant as a test for making a Homebrew spell, and is not to be taken seriously, but I would appreciate feedback.)