@Mama Cakes
For spacing between sentences on iPhone, hit the space bar twice. This will automatically place a period at the end of the sentence just finished, skip a space and automatically capitalize the next word you type.
When I’m using my Android tablet, it’s so hard for me to remember that this is an IOS-only convenience that I’m so much in the habit of expecting :)
For your nose, in addition to the saline rinse mentioned, afterwards you could try a small bit of Vicks Vaporub spread around the inside of each nostril.
In addition to the smell somewhat combating the annoying cigarette smell, the Vaseline-type gel consistency will help to prevent moisture loss by coating the mucus membrane linings of the nostrils. (...basically a similarity to how lip balm prevents moisture loss from that area)
Personally, I’d so much prefer the smell of Vicks to the smell of burning tobacco :)