Aiyo, sakit hati tengok anak merah-merah kan, especially balik dari trip pulak! Since dia jarang keluar rumah and baru balik dari Langkawi, boleh jadi heat rash from the humidity and heat sana, tapi bisa juga ada benda lain macam allergic reaction to something new or even viral rash, so better kena check dengan doctor ya to be safe, a few of my mum friends had similar situation and turned out bukan heat rash pun, so jangan self-diagnose lama-lama. Does the rash look itchy or lembik, and ada demam ke?