Heat has short and immediate effect on pain relief and at least 20 minutes lying in warm water improves labor
process (Moneta, etal. 2001; Curkovic, etal. 1993). On the other hand, the effect of cold is prolonger and
increases pain threshold after 5 to 10 minutes (McCaffery, 1999; Curkovic, etal. 1993). Based on this
information, the protocol of intervention was set. Further, all mothers in the present study were primigravida,
nullipara in order to identify the actual effect of the intervention. Parity is a predictor of higher maternal
satisfaction, preceding births can offer some preparation for a subsequent one