Table 4.

Comparison in different parameters in various studies using intralesional injections for treatment of post herpetic neuralgia

Name of study	Combination used	Maximum patients in age group/mean age in years	Sex	Commonest dermatome	duration of PHN in maximum patients (in months)	Duration >2 years	Mean VAS at baseline	Response rate
Bhargava et al.[4]	L: B: D: 3:2:0.02 freq 6 weeks	60–80 (48%)	-	Thoracic (57%)	0–6 (47%)	12%		85%%
Puri et al.[5]	L, B, D Concentration not mentioned, 6 weekly	41–50 (33.3%)	M>F	Lumbo-sacral (60%)	6–12 (40%)	10%		90%
Amjad et al.[6]	T: L: W: 1:5:44, 2 weekly	61.06	M>F					83.3%
Ni et al.[7]	T2:L2::1:1 3 weekly	65.86	F>M	Thoracic 62%				Response better than 2% L
Asim et al.[18]	T: W::3:7	45.93	M>F	Thoracic 20.68%			6.93
Khallid et al.[19]	6 weekly							60.2%
Epstein et al.[20]	T only 2 weekly							62.5%
Our study	L: B: D::6:5:1	63.33±9.53 years	M>F	Thoracic (49%)	0–6 (50%)		7.730±1.622	50% excellent, 25% good response

L (Lignocaine 2%), B (Bupivacaine 5%), D (Dexamethasone 4 mg/mL), T (Triamcinolone 40 mg/mL), T2 (triamcinolone 10 mg/mL), L2 (lignocaine 0.5%)