Yes Banana can be given to 2year old child even with cold and cough. So please continue it. It has lots energy and viamins and minerals.
Banana is not a remedy.
You give INDIAN HERBS ĶADDA. 150 ml of drinking water,'+ fresh crushed ginger,+ Jaggary,+3 'whole black pepper,+ 3 cloves. Boil this concocction to concentrate ro100ml. Cool it.serve warm. Twice a day for3days.
You can give steam inhalation.but it has lot of hassles and dangerof burn
VitC500mg chewable soluble tab off and on as Candies.
Keep ventillation.Minimum furniture, wipe it instead of dusting.
Don't forget immunization.
Good nutrition with green veg. Enough of proteins. Antioxidants and vitamins and minerals.
Activity to be encouraged.
Ventillation.
Positive healthy emotional environments.Never shout or argue or abuse in presence of your child. They repond by showing behavior problems if there is emotional insecurity..
Take care of mosquito to prevent malaria, dengue and filaria. Stay at home safe to prevent covid 19.
Next Steps
If any problem, consult through Practo.