Reaction vessels, also known as spider nevi, are small dilated blood vessels usually located on the face, neck and arms. They can look like small red spiders or twigs and are caused by an overgrowth of blood vessels in the skin. The exact cause of reaction vessels is not fully known, but there are several factors that contribute to their development. One of the most important factors is hormonal changes, such as during pregnancy or when using birth control pills. In addition, heredity, sun exposure, alcohol consumption and liver disease can also play a role in the development of reaction vessels. Although reaction vessels are usually harmless, they can be cosmetically disturbing. Fortunately, there are several treatment options available to reduce or even completely eliminate reaction vessels. One of the most effective treatments for reaction vessels is laser therapy. This treatment uses a special laser to heat and destroy the blood vessels, causing them to gradually disappear. Laser therapy is generally safe and effective, but it may take some time before results are visible. Multiple treatment sessions are usually required to achieve the desired result. Another treatment option for reaction vessels is electrocoagulation. This method uses an electric current to destroy the blood vessels. Although electrocoagulation can be effective, it may be associated with some pain and discomfort. In addition, it can leave scars, especially in people with dark skin. In addition to these medical treatments, there are also some natural remedies that can help reduce reaction vessels. For example, applying cold compresses to the affected areas can help constrict blood vessels and reduce redness. In addition, certain creams and lotions containing ingredients such as vitamin K, arnica and horse chestnut extract can also be helpful in reducing reaction vessels. It is important to note that while these treatments can help reduce reaction vessels, they are not always completely effective. Therefore, it is advisable to consult a dermatologist before undergoing any treatment so that you can determine the most suitable option for your specific situation. In short, reaction vessels can be cosmetically disturbing, but several treatment options are available to reduce or eliminate them. Whether you choose laser therapy, electrocoagulation, or natural remedies, it is important to consult a dermatologist to determine the best treatment option for you. With the right approach you can enjoy smooth and radiant skin again.