My 20 month old is not eating since 2 days...all she wants is milk..im force feeding..pls advice

I would advice you to find the reason behind her not eating. Is she showing signs of a cold, running a temperature, or is she biting everything and drooling profusely? If so she could either be teething or be catching a cold. Toddler appetites change so erratically it is hard for us parents to keep track. Don't force feed her, she may vomit or worse, choke on the food - especially if she's resisting so much.