The liquid rule.
If you are planning to carry liquids, gels, creams etc. in your carry-on bag then you have to adhere to the 3-1-1 TSA liquid rule. Meaning the liquids should be in containers that are 3.4 ounces or less. They should be packed in a quart size bag that is transparent, plastic and has a zip top. All the liquids are to fit in the quart size bag. Every passage is allowed to carry only one quart size bag.
But for containers that are 3.4 ounces and above, you are advised to pack them in the checked bag. This rule has an exemption for containers that are for medication or are for babies and their nourishments.
Passengers returning to the United States can only carry duty free liquids that are of 3.4 ounces and above in their carry-on bags under the following conditions.
Point to Note: liquids that in containers of over 3.4 ounces and are not packed in a safe, tamper-evident bag should be packed in the checked luggage.
The packing rule
Before you begin packing;
When you are packing.