Wah, biji merah ni yang merah kecil-kecil kat kulit tu kan? Kalau baby ada, better check dengan doctor sebab sometimes boleh jadi heat rash atau allergic reaction, especially kalau cuaca panas or pakaian tight sangat. A few of my mum friends' babies pernah kena, biasanya okay kalau keep the area cool and dry, tapi if it spreads or baby nampak uncomfortable, jangan delay, call your clinic lang, they can advise properly!