Cercarial dermatitis

Cercarial dermatitis: Causes, symptoms and treatment

Cercarial dermatitis, also known as dermatitis cercarialis, is a skin condition caused by contact with cercariae, the larvae of parasitic flatworms known as cercariae. This condition usually manifests itself as inflammation and itching of the skin and can occur in people swimming or staying in fresh bodies of water, such as rivers, lakes or ponds, where infectious cycles of parasites are present.

Cercarial dermatitis is caused by contact with cercariae that live in water and become infected with infectious parasites. Cercariae are intermediate hosts for various types of parasites, such as Schistosoma flatworms and other types of parasites. When a person comes into contact with water containing infective cercariae, they can enter the skin through microscopic pores, causing irritation and inflammation.

Symptoms of cercarial dermatitis include itching, redness, swelling and skin rashes. Symptoms usually occur within a few hours of exposure to infective cercariae. The itching can be intense and lead to abrasions, cuts or ulcers. Some people may also experience symptoms similar to an allergic reaction, such as hives or facial swelling.

Treatment for cercarial dermatitis usually involves symptomatic therapy to relieve itching and inflammation. Applying cold compresses or using lotions with antihistamine properties can help relieve itching and reduce inflammation. If infection develops, antimicrobial agents may be required. It is recommended to avoid contact with infectious bodies of water, especially in areas where cercariae are known to be present.

Prevention of cercarial dermatitis involves taking certain precautions when coming into contact with fresh water bodies. It is recommended to avoid swimming in bodies of water where cercariae infection cycles are known to occur. If swimming is unavoidable, it is recommended to use a protective sunscreen, which can also prevent cercariae from penetrating the skin. In addition, after swimming, it is recommended to take a shower and wash your skin thoroughly to remove any possible cercariae.

In conclusion, cercarial dermatitis is a skin condition caused by contact with cercariae, the larvae of parasitic flatworms. It manifests itself in the form of inflammation, itching and skin rashes. Treatment usually includes symptomatic therapy to relieve itching and inflammation, as well as precautions when coming into contact with fresh water bodies where cercariae infective cycles may be present.