Causes and risk factors
There are three main types of cutaneous myiasis – furuncular myiasis, wound myiasis, migratory myiasis. Furuncular myiasis is caused by coming in contact with infected objects or being bitten by infected insects. Wound myiasis occurs due to infection of an open wound, mucus membranes; open cavities are also affected; usually common in homeless or alcoholic people. Migratory myiasis is acquired due to contact with infected cattle or horses.
Clinical presentation
Patient presents with itching of skin. There is sensation of movement, sharp pain in the affected part. An enlarged red bump is present on the skin with a small opening at the center. The opening may drain clear, yellowish fluid.
Investigation
Medical history by the patient and clinical examination by the dermatologist helps in diagnosis. CBC count may show leukocytosis and eosinophilia . Dermoscopy is advised.
Treatment
The larva needs to be extracted surgically under local anesthesia. Larvicides can be given orally or in the form of a topical agent [lotion, etc.]. Debridement and irrigation of the wound is done.
Other Modes of treatment
The other modes of treatment can also be effective in treating cutaneous myiasis. Homoeopathy is a science which deals with individualization and considers a person in a holistic way. This science can be helpful in combating the symptoms. Similarly, the Ayurvedic system of medicine which uses herbal medicines and synthetic derivates is also found to be effective in treating cutaneous myiasis.
