Remember that sickness expiates evil deeds and wipes out sins.

Abu Hurairah narrates that the Prophet, peace be upon him, said: “When Allah wants to be good to someone, He tries him with some hardship.”

Abu Hurairah also reports that Allah’s Messenger, peace be upon him, said:
“For every misfortune, illness, anxiety, grief, or hurt that afflicts a Muslim -even the hurt caused by the pricking of a thorn – Allah removes some of his sins.”