The infection can spread via skin-to-skin contact, clothing, or surfaces where the fungus lives, such as in showers or locker rooms. It's more common among people with compromised immune systems and can spread more easily among families (because of skin contact) or athletes (because of the locker room environment).
Touching or scratching the area with ringworm and then touching another area can spread ringworm from one part of your body to another. Washing your hands well can help prevent this. Keep the infected area clean and dry.
Ringworm remains contagious during the first 48 hours of treatment in people and for about 3 weeks from the start of aggressive treatment in pets. In both cases, untreated ringworm remains contagious for much longer. The fungal spores themselves can live for up to 20 months.
It requires direct skin-to-skin contact. Ringworm from pets is not passed from human to human. It is only passed from animal to human. After 48 hours of treatment, ringworm does not spread to others at all.
Treat all areas infected.
If your ringworm has spread to other areas, it's important to use cream, lotion, powder and/or oral medicine as directed on all infected body parts. For example, if you're suffering from both jock itch and athlete's foot, use antifungal lotions and powders for both infections.
Steroid creams can make ringworm worse because they weaken the skin's defenses. Steroid creams can allow ringworm infections to spread to cover more of the body. Ringworm that has been treated with steroid creams can have an unusual appearance, making it hard for healthcare providers to diagnose.
The infection may return if you stop treatment too soon. See a doctor if the rash doesn't go away after two weeks of home treatment. A ringworm infection that doesn't improve or that spreads may require a prescription-strength topical cream or oral antifungal medication.
Let it breathe. It may seem logical to keep ringworm covered with a bandage to prevent spreading the infection. However, bandaging the rash locks in moisture and slows the healing process. Instead, wear comfortable, breathable clothes to speed healing and avoid spreading the rash to other people.
A scaly ring-shaped area, typically on the buttocks, trunk, arms and legs. Itchiness. A clear or scaly area inside the ring, perhaps with a scattering of bumps whose color ranges from red on white skin to reddish, purplish, brown or gray on black and brown skin. Slightly raised, expanding rings.
The fungus can survive on contaminated objects for long periods of time, sometimes up to 18 months.
It starts small and slowly grows larger. As it grows, the central part of the rash usually becomes clear.
Generally speaking, moisture always aggravates any infection. But, you can still take a bath by using antifungal soaps when you have a ringworm infection.
People can get ringworm after contact with someone who has the infection. To avoid spreading the infection, people with ringworm shouldn't share clothing, towels, combs, or other personal items with other people.
Ringworm on the skin like athlete's foot (tinea pedis) and jock itch (tinea cruris) can usually be treated with non-prescription antifungal creams, lotions, or powders applied to the skin for 2 to 4 weeks. There are many non-prescription products available to treat ringworm, including: Clotrimazole (Lotrimin, Mycelex)
How is ringworm diagnosed? Your healthcare provider might suspect you have ringworm by looking at the affected skin and asking questions about your symptoms. Your healthcare provider will generally take a small skin scraping or nail sample to examine under a microscope or send to a laboratory for further testing.
How soon do symptoms appear? The incubation period is unknown for most of these agents, however ringworm of the scalp is usually seen 10 to 14 days after contact and ringworm of the body is seen 4 to 10 days after initial contact.
If left untreated, the area can become boggy (spongy), discharge pus and develop areas of hair loss. This form of ringworm is most common in children.
Terbinafine (Lamisil) comes in creams, sprays, and gels and can treat athlete's foot, jock itch, and other ringworm infections on the skin. The CDC says terbinafine seems to be the most effective treatment for tinea pedis. Possible side effects include: peeling.
All bedding, brushes, combs, rugs, cages, etc. should be vacuumed, scrubbed, and washed with hot water, detergent, and 1:100 chlorine laundry bleach, or another effective disinfectant (see above). It is best to throw out any items that cannot be thoroughly disinfected.
Don't walk barefoot in areas like locker rooms or public showers. Clip your fingernails and toenails short and keep them clean. Change your socks and underwear at least once a day. Don't share clothing, towels, sheets, or other personal items with someone who has ringworm.
Because the fungi can live indefinitely on the skin, recurrences of ringworm are likely. Treatment may need to be repeated. If you have ringworm symptoms, see your healthcare provider for treatment recommendations. It is important to note that common home remedies do not effectively treat this condition.
Ringworm scars are usually brown or discolored and flat. They may cover large or small patches of skin. Some scarring caused by ringworm can be permanent.
Some people get blisters. Scalp ringworm (tinea capitis): This causes scaly, red, itchy bald spots on your scalp. If left untreated, the bald spots can grow bigger and become permanent.
Symptoms of a fungal scalp infection include small patches of scaly scalp skin (which may be sore), patchy hair loss and itchiness. Other types of fungal infections (including ringworm) are generally treated with antifungal cream from the pharmacy, and you don't need to see a doctor unless it persists.
The infection starts as a rash with tiny red pimples. The pimples slowly spread and form a round or oval ring, typically ½ to 1 inch (12 to 25 mm) in size. The edges of the area are red, raised or scaly. After the ring has formed, the skin inside the rash may look pink or almost normal.