This is the 5035th most frequent French word.
tousser
To cough.
The verb 'tousser' is used in present tense to indicate the action of coughing due to illness.
Je tousse beaucoup à cause de ce rhume.
I cough a lot because of this cold.
The verb 'tousser' describes an action performed occasionally, here reflexive or psychological.
Quand il est nerveux, il tousse parfois pour se calmer.
When he is nervous, he sometimes coughs to calm himself.
The verb 'tousser' is in the infinitive form, used here as part of a conditional expression advising medical consultation for prolonged coughing.