Uy, this is really something na kailangan mo talaga i-clarify with your baby's doctor, ha, especially pag may respiratory stuff involved, kaya please ask your pediatrician kung ano exactly ang trigger para sa nebulizer or kung dapat preventive. A few of us moms with asthmatic kids have different protocols kasi it really depends on what your doctor prescribed for your baby, so don't compare pa with other kids. Mas safe kung may clear instructions from your pedia on when exactly to use it, kung mild cough pa lang or pag medyo mahirap na talaga ang breathing. Sending you strength, nak, pag may ubo siya stressful talaga!