Diethylcarbamazine over the counter(DEC) is a medication used primarily to treat parasitic worm infections. It is particularly effective against lymphatic filariasis, a disease caused by thread-like worms transmitted by mosquitoes. DEC works by paralyzing and killing the worms, helping to eliminate them from the body. Additionally, DEC has some anti-inflammatory properties, which can be beneficial in treating certain inflammatory conditions caused by filarial infections. While DEC is generally well-tolerated, it can cause side effects such as nausea, vomiting, and dizziness. It is important to use DEC under the guidance of a healthcare professional to ensure safe and effective treatment.