Table 4. Frequency of foreign body sensation in the groups at different visits.

Groups	1st visit	2nd visit	3rd visit	P (Chi-square)	1st to 3rd visit difference	P (Mann-Whitney)
Azithromycin	58%	44%	26%	0.016	28%	0.881
Doxycycline	54%	46%	28%	0.027	26%