Table 3.

Appearance of tympanic membrane

	Normal TM		Congested TM		Bulged TM		Retracted TM
	U/L	B/L	U/L	B/L	U/L	B/L	U/L	B/L
Before treatment (in nos.)	0	3	20	2	5	2	21	7
Before treatment (in %)	0	5.00	33.33	3.33	8.33	3.33	35.00	11.67
After first follow up (in nos.)	22	10	1	0	1	0	20	6
After first follow up (in %)	36.67	16.67	1.67	0.00	1.67	0.00	33.33	10.00
After second follow up (in nos.)	22	10	1	0	0	0	21	6
After second follow up (in %)	36.67	16.67	1.67	0.00	0.00	0.00	35.00	10.00
After third follow up (in nos.)	22	10	0	0	0	0	22	6
After third follow up (in %)	36.67	16.67	0	0.00	1.67	0.00	36.67	10.00

U/L unilateral/l, B/L bilateral, TM tympanic membrane