Indeed there are, and starting with lewdness, you have 2 options:
- Using the Lewd Refiner on Rumia’s shop allows you to reset the lewdness level (costs 500 SP per use).
- If you have the Easter event enabled, there is a rare chance to find a Pure Egg. Consuming it reduces lewdness by -1.
Regarding the mosquito, you have to use the Insect Repellent instead of the Incense for permanently getting rid of it :).