Teething or Something else?

Hello po, pls help a mommy na medyo worried. Nov 30 nagstart ang sinat ni baby but temp is only 36.5 lang. nagpacheckup kami Dec 1, 36.9 temp and okay naman daw Niresetahan ng citirezine si baby dahil may konting ubo. but around afternoon umabot ng 37.7 so binigyan namin ng tempra then by 9pm nawala na lagnat. Today Dec 2 wala na sya lagnat but may rashes na nagappear as per pics. Simula Nov 30 din matamlay eyes nya, antukin at irritable, gusto lagi buhat. Medyo basa din poops. Bukas for measles vaccine sya. Please share some insights naman po Thanks in advance po 🙏