From the photo, the small raised bumps appear to be 'vesicles' or very small, fluid-filled blisters. These vesicles may occur on the fingers, palms and occasionally on the soles of the feet, and are due to a condition called Dyshidrosis (or dyshidrotic eczema or pompholyx eczema).
The blisters are usually itchy and may be filled with fluid. Blisters normally last for about two to four weeks. While the cause of dyshidrosis is unknown, it can be may be related to seasonal allergies (such as hay fever), emotional or physical stress, exposure to certain metals (eg. cobalt and nickel), skin sensitivity and atopic eczema.
A consultation and physical examination with a doctor is advisable to exclude viral warts, fungal infections and other blistering conditions that may look similar.
For a majority of people, Dyshidrosis is self-limiting (resolves spontaneously) and simply causes itch and discomfort for several days or weeks. Scratching should be minimised to avoid bacterial infections of the affected areas. Use mild cleansers when washing your hands and moisturise regularly. Wear gloves when dealing with detergents and harsh chemicals.
Oral anti-histamine medications are helpful in controlling itch. In rare occasions where symptoms persist, doctors may prescribe topical corticosteroid ointments or immune-modulating medications such as tacrolimus (Protopic) to help speed the disappearance of the blisters. Phototherapy (Light therapy) has also been used in some resistant cases.
