my baby keeps on scratching her stomach with her hands and by this act she also developed marks on her stomach ....what does her scratching signify?what should I do?

A. can be just playing or exploring. check any allergic reaction. stop using cosmetics, soaps, bathe with clean water,  also some babies get allergy due to clothing.use regular cotton clothes. skip the suspected item apply soothing lotion or ice if itching.