Also, one of the lesions is on my breast. You don't say how long you've been treating the ringworm with the Micatin. Usually, creams are applied twice a day, with treatment continuing for seven to 10 days after the rash completely disappears. If the cream is stopped too soon the infection may not be eradicated and the rash will return. For more serious or stubborn infections a doctor may prescribe several months of therapy with griseofulvin, sometimes together with an antifungal cream.
Doctors often advise against powders containing cornstarch because it can promote fungal growth.
It's wise that you plan to see a doctor. Micatin is contraindicated during pregnancy and breast-feeding. However, the FDA requires that all medications carry this warning unless they have been tested on pregnant women or breast-feeding moms, and many drug companies are reluctant to do this testing because of the risk and liability involved. If your baby is coming in contact with the ringworm it, too, could develop the infection. See your doctor as soon as possible.