Fungi can be true pathogens, which cause infections in healthy people, or opportunistic pathogens, which cause infections in immune-compromised patients.
A common type of fungus is yeast, which is already present in the human body, but when levels increase, can result in infection.
Dermatophytes are fungal organisms that grow on the human body and infect the top layer of skin as well as nails or hair. There are different types of fungal infections, and each can appear in different areas of the body. Some symptoms include: rash, itchy blisters, cracking of the skin, and skin irritation.
What Causes Fungal Infections?
Fungal infections can be caused by a variety of conditions and medication-use. Some risk factors for developing a fungal infection include the following:
- Antibiotics: Antibiotics decrease the amount of helpful bacteria living in the body. When these levels are decreased, fungi have an opportunity to invade and colonize.
- Corticosteroids: Cortisteroids are often used to reduce inflammation and treat other skin disorders. They sometimes lower immune responses, and thereby create favorable conditions for fungal growth.
- Medical Conditions: People suffering from diabetes and some forms of cancer are more prone to fungal infections.
- Compromised Immune System: When immune systems are weakened, such as when a patient undergoes chemotherapy, or for those inflicted with Acquired Immune Deficiency Syndrome (AIDS), fungi have better opportunities to grow, causing more infections.
- Environmental Factors: Fungi grow and reproduce in moist areas. Sweaty shoes and clothes can therefore help increase fungi production and lead to infection.
- Heredity: Some people are genetically predisposed toward fungal infections. They are more likely to contract a fungal infection when exposed to infectious conditions.
What Are the Different Types
of Fungal Infections?
- Tinea Pedis (“Athletes Foot”): Tinea pedis affects over 10% of the United State’s population each year, and 75% will contract it at some point in their lives. The fungus appears in between toes, characterized by skin becoming white, moist, and easily rubbed off. The tops may be red, dry and flaky. Tinea pedis generally occurs with hot, moist conditions, or if shoes are worn often and without socks.
- Tinea Cruris (“Jock Itch”): As with tinea pedis, moist, sweaty conditions around the groin, combined with poor circulation from tight clothing leads to fungal infection in this area. Intense itching and burning are the usual symptoms. Redness, flaking and peeling on the inner thighs and scrotum may also occur.
- Tinea Corpora (Ringworm): Tinea corpora is caused by a microscopic fungus, not a worm as the name implies. The infected area spreads out slowly from the central point, creating a slightly raised, red ring surrounding a less red, flaky, itchy area. This “ring” gives the infection it’s nickname. Tinea corpora can spread throughout the body, and may appear in multiple areas at once.
- Candidiasis: This infection is characterized by brown-red itchy discoloration on the skin, generally occurring where there are folds in the skin such as under the arms, in the rectal area, and beneath the breasts. This type of fungus also causes vaginal yeast infections.
Treatments for Fungal Infections
Treatment for fungal infections is generally antifungal creams, which can be bought over the counter, such as 1% clotrimzole and 1% terbinafine. They are usually applied to the affected areas several times daily, and can take many weeks before all signs of the fungus vanish. If these creams fail, prescription antifungal creams such as econazole 1% may be recommended. For extreme cases, or when toenails are involved, oral terbinafine may be useful.
There are some measures you can take to prevent the skin from contracting a fungal skin infection. You should always keep clothes dry and clean, and wear loose-fitting clothes as much as possible. Avoid sharing hairbrushes, combs, and towels, as they may contain skin fragments with fungal colonies. Use alternative shoes every few days to avoid athlete’s foot. Natural fabrics that allow the skin to “breathe,” such as cotton, should be worn as well.
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OTHER Skin Conditions
Acne is the most common skin condition in the United States. Although it’s common, accurate information about acne can be scarce.
An acne cyst forms when the pore fills with dead skin cells oil, and bacteria. A cyst goes deep into the skin and can hurt.
An actinic keratosis or AK is a rough, dry, scaly patch or growth that forms on the skin. An AK forms when the skin is badly damaged by ultraviolet (UV) rays from the sun or indoor tanning.
Alopecia (Hair Loss)
Millions of people experience hair loss. Some people see their hair re-grow without doing anything. Others need treatment for their hair to re-grow. Sometimes, hair will not re-grow.
This is a common skin disease in children. Children often get atopic dermatitis (AD) during their first year of life. If a child gets AD during this time, dry and scaly patches appear on the skin.
Atypical Mole (Dysplastic)
This type of mole can look like melanoma. It is not melanoma. But you have a higher risk of getting melanoma if you have certain risk factors.
Basal Cell Carcinoma
Basal cell carcinoma (BCC) is the most common form of skin cancer. More than two million cases of this skin cancer are diagnosed in the United States each year.
Bedbugs are tiny insects that feed on human blood. They hide in dark places close to where humans sleep and usually crawl out to feed while people are fast asleep.
Dry skin is common. It can occur at any age and for many reasons. Using a moisturizer often helps repair dry skin.
Eczema is a word that means irritated skin. Doctors don’t really know why some kids and adults get eczema, and others don’t. They think it might happen for a variety of reasons.
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To Our Patients,
The CDC has announced new mask protocols for vaccinated individuals, however as the announcement does not apply to hospitals or medical facilities, there will be no changes for our office protocols for patients, guests, and staff members. Masks are still a requirement for all patients, guests and staff at our offices.
If you have any questions or concerns, please feel free to reach out!
Sharon Scherl MD, Ana Cristina Laureano MD, and the entire staff of Scherl Dermatology