Hives are itchy, red welts or small bumps that last from 15 minutes to several hours. They usually appear suddenly and leave no trace when they disappear. Crops of Hives may appear several times a day. They may come and go for days, weeks, or sometimes longer. Hives are harmless except when they cause throat swelling, which is rare but requires immediate treatment. Angioedema is a hive-like swelling of the lips, eyes, or other tissue. Angioedema may take 24 hours or more to go away. Hives are treated by Dr. Green for patients in the DC, Virginia, and Maryland regions.

What causes Hives?
Hives are usually the result of an allergic reaction.

How do I determine the cause of my Hives?
Medications such as penicillin, aspirin, or codeine may cause Hives in people who are allergic. Certain foods like shellfish, strawberries, chocolate and blue cheese commonly trigger Hives. Infections such as infectious mononucleosis (more commonly known as “mono”), urinary tract infections, colds, infected teeth or sinuses can also cause Hives. Hives are rarely the result of an internal disease such as an overactive thyroid. Occasionally physical agents such as pressure, cold, heat, sunlight, and exercise may cause Hives.

What are treatment options for Hives?
First and foremost, the inciting cause should be avoided. Antihistamines are usually effective in treating hives. If your hives are persistent or not readily responding to antihistamines, testing and the use of other medication may be prescribed.

“You cannot go wrong with this dermatologist. Dr. Green and his staff are the very best! They go out of their way to assure patient satisfaction. I have used many services in the Bethesda location, and have always been more than satisfied. I highly recommend Dr. Green.” 

Susan E.

David Green, M.D.

Dr. David Green is a Board Certified Dermatologist in Bethesda, Maryland. Dr. Green specializes in Dermatology, Dermatologic Cosmetic and Laser Surgery, and the treatment of Varicose Veins and vascular disorders.

He is Certified by the American Board of Dermatology, is a Fellow of the American Academy of Dermatology, and a Member of the American Society for Dermatologic Surgery, and the American College of Phlebology. He treats patients from Maryland, Washington DC, Virginia and throughout the Mid Atlantic region.


Dr. David Green proudly offers services in his Bethesda, Maryland office.

4800 Montgomery Ln.,
Suite L50
Bethesda, MD 20814
Phone: 301.907.7250


10.32.09: Delegation and Assignment of Performance of Cosmetic Medical Procedures and Use of Cosmetic Medical Devices. This is a Maryland safety regulation that governs who can legally perform medical cosmetic procedures.  Dr. Green administers all injectable treatments (including Botox™, Juvederm™, Voluma™, Kybella™, and other fillers & Sclerotherapy) and laser treatments.