1) If ur daughter is having only redeyes with no pain, no irritation or no discharge then - refresh eyedrops 6 times a day for three -5 days
2) if your daughter is less that 20 year old with redness, swelling, discharge , irritation any of these two symptoms then use tobra eye drops 6 times a day and also use refresh tears eyedrops 6 times a day
3) if ur daughter is above 21 years then with two or more above symptoms then can use ciplox or mahaflox eye drops 6 times aday along with refresh eyedrops 6 times a all drops for 4-5 days
Next Steps
first use the drops accordingly as mentioned above , wait for 2 days
if worsening or not at all improving then visit ophthalmologist for consultation