Aww FTM ka pa lang, I know it's scary pag umuubo ang baby! Honestly, sa 10 months, best talaga ay makita ng pedia mo para malaman kung ano talaga ang cause, basta dry cough lang ba or may phlegm, kasi iba-iba ang treatment depende doon, at importante na ma-rule out kung may infection. A few of us here tried humidifier sa room and mas bumuti ang ubo, plus keeping baby hydrated talaga helps, pero please get it checked para safe at peace of mind mo!