As I am unable to find LYSOL's disinfectant sprays or Nair's hair remover whenever I go shopping, I wonder if someone would be kind enough to advise whether there are Thai equivalent products I can buy instead please? Thank you.

You can try Veet instead of Nair. I've used both and prefer the Veet. Bleach, mixed according to standard disinfection formulas and allowed to air-dry, can replace the Lysol, at least on completely colorfast surfaces. Any other suggestions?