The diseased persons gathered today (and represented pitifully) their case to Allah, the Health-Giver, i.e. they sincerely repented Allah relented to them). Thereupon they asked the pains (i.e. the disbelief) to depart and leave them as the compassionate Beloved had showed Himself to them.
Note: (1) صحت may imply the personification of health, (i.e. Allah).
Note: (2) This verse may also be interpreted as under: صحت may also implyشفاعت All sinners approached the Intercessor (i.e. the Prophet), whose intercession with Allah on their behalf would earn them Divine pardon. They were relieved by the Prophet’s appearance and they asked their sufferings (due to sinfulness) to leave them and harass them no more.
“And We have sent you not but as mercy for the mankind”. (107, Al-Anbiya).

Today the suffering ones called health in unison,
Disease disappeared when loved one's face was seen.

All the sick assembled and asked for health,
Run away affliction, the benevolent has shown his face.