I am allergic to tobacco smoke, so I feel your pain. Try this to eliminate as much smokie as possible. Place dishes of white vinegar around each of your rooms and check each day. I suspect that you will be grossed out by how dark the vinegar becomes in just a day. My mother, step-father and his father were heavy smokers and would get together once a week to play cards. Then Mom quit smoking and “got religion” about smoke. Her mother-in-law suggested the vinegar trick; she & I were impressed. I have even seen it work for homes down-wind from wild fires.

The smell of cigarette smoke might be one of the trickiest smells to deal with, because it really adheres to fabrics and surfaces. Here’s some tips for getting rid of the smell of cigarette smoke, depending on what you’re dealing with:
Clothing and fabric – Machine wash item(s) on a cold water cycle with 2 cups of white vinegar.
Carpets, mattresses, and furniture – Sprinkle baking soda on the item, let it sit there overnight, then vacuum it up in the morning. Repeat if necessary.
Walls – Clean walls with a rag soaked in equal parts water and white vinegar.
All over – Be sure to replace the air filters in your HVAC system and clean out the air ducts thoroughly.

I’ll have to get working on one, thanks for the idea Melinda!