it smells good
because it is a smelling candle!
The term "smelling like a rose" refers to someone/something that smells nice.
No, but you can get an allergic reaction from breathing in/smelling something you are allergic to.
smell / smells /am, is, are, smelling
The forms of the verb smell are smells, smelling, smelled (or smelt).
learning and smelling the amazing smells in her garden
on how your breath smells
pee
Sourdough smells like alcohol because during the fermentation process, yeast in the sourdough starter produces alcohol as a byproduct.
because it is a stinky smelling bacteria and it smells like Joan Chavez.
I am inclined to ask "What is it that you are smelling?" As a general rule of thumb, no. Unless you have a past experience or you are a chemist, the nose is a sensory organ that cannot tell you if you are being harmed. Some things, such as a skunk or flatulence, can really stink, but not harmful. Other things, such as the WW I poison gas phosgene, has the smell of freshly-mowed hay and can kill you.