What are vesicles?

Vesicles or blisters forms once fluid is trapped below the epidermis, resulting to a sac similar to a bubble. The adjacent skin holds the fluid in place but the vesicle might break relatively easy and drain the fluid.

The vesicles are usually less than a half centimeter in diameter up to more than an inch and can contain air or fluid. The presence of vesicles might be indications of contact dermatitis, chicken pox, early stages of eczema, herpes simplex or shingles.

Possible causes

Vesicles are instigated by various causes where some are minor such as friction. If an individual broken into a new pair of shoes or used the hands while playing sports or engaging in manual labor, blisters have likely occurred. Other minor causes include contact dermatitis, allergic reactions, cold sores, exposure to chemicals, eczema and burns.

If the individual has persistent, large-sized lesions that spread or change in color or shape, a doctor should be consulted. Some causes might be serious and necessitates a check-up with a doctor if the vesicles are due to a current condition such as herpes, autoimmune disorders, impetigo as well as chicken pox or shingles.

How vesicles look like


If an individual broken into a new pair of shoes or used the hands while playing sports or engaging in manual labor, blisters have likely occurred.

The usual vesicle appears similar to a small-sized bubble of fluid below the skin. The bigger the vesicle, the more susceptible to breaking open that can be quite sore. It can also trigger inflammation in the adjacent area. In case a blister breaks open before the underlying skin recuperates, it increases the risk for infection.


Even though it appears tempting, it is vital not to prick or scratch the lesions. It is vital to keep the area clean and lumps sealed so that the skin below can heal. In case a vesicle is inflamed and sore, the doctor can drain the fluid in a sterile manner to allow the skin to heal effectively without the risk for infection.

The treatment usually depends on the cause. In most circumstances, the vesicles are managed with over-the-counter medications or can heal on their own. The severe cases often occur with serious symptoms such as infection or inflammation and medication is strongly required. The vesicles triggered by autoimmune disorders can be managed with an antibiotic to fight off the infection and corticosteroids to minimize the inflammation.

Preventive measures

The vesicles are not always preventable. Those that are triggered by genetics or a viral infection might manifest in the future. Proper care can manage the vesicles as they develop but if they are instigated by a serious condition, they are likely to recur. In case allergies trigger the vesicles, the potential allergens must be avoided and do not share items such as cups, straws and lip products.


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