The medicines you are giving are fine. Avoid roll on if you don’t know the constituents
Ideally you should visit the paediatrician.
To tide over till then - don’t give any milk.
Diet: Curd is very good, any probiotics if you have will be perfect ( something like Vizilac/ Sporolac)
Give her home made food - khitchri/ poha etc with curd. Coconut water, banana- soft diet. Toasted bread, curd rice are very good
Next Steps
Don’t give her outside food