Hello. Baby is 10 months old. Previously, they did nebulization with B…

Hello. Baby is 10 months old. Previously, they did nebulization with Berodual, then went for a check-up and were told to do it again. Then they said there was no wheezing, but the throat is slightly red, although it was red on the chest, gums, and skin. I'm trying to give him water, juice, and breast milk. The cough has passed, but now he has clear phlegm, which he sucks out. And I apply a physical solution every minute, and he gets fussy about something. Do you think it's okay to give him medication? He doesn't have an appetite today except for his breasts.