Dr. Christy Cathleen Riddle M.D.

What is a blood blister?A blood blister is a raised piece of skin that has blood inside it. Blood blisters are somewhat similar to blisters that have clear fluid in them. The blisters are usually harmless and tend to go away within a few weeks without treatment. A blood blister can contain blood,...

Heat rash is a skin condition that is known to happen as a result of excess sweating. It is usually caused by a blockage of the sweat ducts. There are a number of things that can lead to the blocking of the sweat ducts. As these ducts are blocked, there is little evaporation of the sweat, which...

Chicken pox, also known as varicella, is a very contagious disease that is caused by presence of the varicella zoster virus (VZV). The most typical and characteristic sign of chicken pox is itchy bright red blisters all over the body. The varicella vaccine protects about 70-90% of the people who get...

Retinoids are considered to be the best weapon against aging by most dermatologists. Often regarded as an indispensable anti-aging component, this vitamin A derivative reduces wrinkles, increases the thickness and elasticity of the skin, and lightens the dark spots caused by sunlight. Retinoids...

What is actinic keratosis?The human body can produce lots of vitamin D when the skin is exposed to the sun. However, too much sun exposure can also wreak havoc on the skin. One of the examples of skin problems due to sun exposure is actinic keratosis, which is characterized by scaly rough patches on...

What is MRSA Infection ?MRSA (methicillin-resistant Staphylococcus aureus) infection is a bacterial infection caused by Staphylococcus aureus that has become resistant to many of the antibiotics commonly used for the treatment of a staphylococcus infection (and is consequently called "the...