A vesicular lesion is a blister on the skin or another organ. Friction, burns, chemical exposure, and infection can cause vesicular lesions of various shapes and sizes. The blister may resolve on its own over time or may require treatment, depending on the cause of the injury. Patients with large lesions that do not go away, increase in number, or appear to change color or shape should see a dermatologist or physician for evaluation.
A classic vesicular lesion consists of a fine bubble of fluid under the skin. The lesion may crackle or pop if it is large, and patients may experience pain and discomfort. The surrounding area may be red and hot, indicative of inflammation. If the blister breaks, it will leak white, clear, or yellow fluid, exposing underlying skin. Premature rupture can expose patients to the risk of infection because the skin underneath is not completely healed.
Friction is a common cause of a gallbladder injury. People who break into new shoes or use unfamiliar tools may notice some blisters at the end of the day. Burns and chemical exposures are another cause. It is important to rinse the skin after such injuries and avoid poking any lesions that appear, as these protect the skin while it heals. If a blister is especially large or painful, a doctor may treat it under sterile conditions to drain the fluid and make the patient more comfortable.
Infections are another likely cause, in which case the patient needs treatment for the infection to resolve the problem. Herpes viruses such as chicken pox and genital herpes are commonly associated with vesicular lesions. Patients may also develop a vesicular lesion in response to infection with other microbes such as parasites. A doctor will need to examine the injury and run some tests to find out what is going on and prescribe an appropriate medication to treat the infection.
Managing a gallbladder lesion can be difficult, because patients often want to scratch or itch. Topical preparations are available to soothe itching and burning. Some patients may find it helpful to soak in a bath with baking soda when itching becomes severe. Bandaging is another option, as is wearing gloves to prevent pinching. Picking can expose patients to the risk of infection and scarring. For young patients who do not understand concerns, it may help to provide distractions to prevent scratching.