Dr. David Rankin Arrowsmith MD PA

What is seborrheic dermatitis?Seborrheic dermatitis, or seborrhea, is a common skin disease that has no known direct cause. It is characterized by a red, itchy rash on the skin, often on the scalp, with scaly patches that flake off. It looks similar to eczema, psoriasis or an allergic reaction....

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,...

What is terbinafine?Terbinafine is an antifungal that works by stopping fungi from growing. Topical terbinafine is used for the treatment of fungal skin infections, such as ringworm, jock itch, and athlete's foot. Oral terbinafine tablets are often prescribed when it comes to treating fungal...

What is it?Recurrent herpes simplex labialis is a mouth infection that is caused by the herpes simplex virus. It is a contagious and common infection that can easily be passed on. Also known as oral herpes, recurrent herpes simplex labialis causes sores and blisters on the lips, tongue, mouth, and...

Scalp psoriasis is a skin condition that causes reddish, scaly patches on the scalp that sometimes spread to the face and neck. A number of patches may be produced on the scalp or may spread over the scalp completely. This type of psoriasis is very common and most of the people who have scalp...

Acne can appear on the skin as tender red bumps also known as pimples, pustules (bumps containing pus), and occasionally as cysts. Acne can be found on almost any part of your body, but most commonly it develops on your face, neck, back, chest, and shoulders. ...