Hi mummies, my 7mth old left eyes have abit of redness... abit worried now cause its been 2 days already... should i bring to the doc? is it normal?

i have seen the pd and was prescribe tobradex eye drop.. pd say might be some kind of allergy with dust or something cause theres no discharge or redness in eye lid.. but the thing is tobradex contain steroid and i'm not so keen in using it...