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Ringworm Infections Different Areas of the Body Are Affected Ringworm is an infection caused by one of a group of fungal parasites (dermatophytes) that affect the skin. Dermatophytes thrive in warm, moist places and live on keratin, a protein found in dead skin, nails, and hair cells. These fungal infections are called tinea infections, and …
Psoriasis: Dry, Scaly Skin Drugs Can Help But Not Cure Psoriasis is a common skin disease that can first appear in young adults. People with psoriasis develop sharply outlined reddened bumps (papules) mixed with rounded plaques (thick, hardened circles of skin). The skin is dry and itchy and is covered with silvery scales that easily …
Poison Ivy/Oak/Sumac Contact with plant oil triggers rash A sure sign of spring and summer are the skin rashes caused by exposure to poison ivy, oak, and sumac. These three native American weeds are a common cause of allergic reactions in millions of people each year. Contact with the urushiol—an oily, toxic, irritating chemical found …
Pinworms Symptom Is Anal Itching There are several types of roundworms that can cause infection in humans. In the U.S., the pinworm is the most common worm parasite. Pinworm eggs enter the body when they are inhaled or when finger nails (after scratching the infected area) are put in the mouth. Infections do not usually …
Insect Stings/Bites Allergic Reactions Allergic reactions to insect stings and bites are common. Reactions to stings include redness, pain and swelling in the area of the sting. Severe allergic reactions occur quickly, usually within minutes; they are less common but can be dangerous. They may cause a sharp drop in blood pressure, a shock-like state, …
Hemorrhoids Why Hemorrhoids Form and What Symptoms They Cause Hemorrhoids are swollen veins around the anus and rectal areas that can cause irritating symptoms such as itching, pain, and bright red blood on the toilet paper or in a bowel movement. These swollen veins can form inside the anus (internal hemorrhoids) or around the anus …
Head Lice Intense Itching is a Sign Head lice are spread by direct contact, such as sharing of combs or hats. They are common in children under the age of 12. Intense itching, especially around the ears and the back of the head, is caused by the lice feeding on blood from the scalp …
Fungal Nail Infections New Oral Drugs Help Clear Fungus Infections Fungal infections of a fingernail or toenail (onychomycosis) are caused by one of three fungus types: dermato-phytes (usually cause of a toenail infection), yeast or molds. The nail often becomes thickened and turns white, yellow or brown. Sometimes the proximal nail fold – the …