kwōroherwa (-ōrohewe)     v    1. to get relief from pain, 2. to improve (physically or otherwise)
improve    (another's work) guhīngūra
(physically or otherwise) kwōroherwa
(to begin to feel better after being ill) gutenzukirwa
(soil) gutabira
(taste of food) kuryosha
(a technique) guteza imbere
(ubuhinga)
En-En dictionary 
pain    igisigo, umubabaro, ububabare
(sharp) umusōnga
(to get relief from) kwōroherwa
(to grit one's teeth to avoid showing) gushinyanga, gushinyiriza
(to have) kubabara
(to have severe) kurībwa
(to suffer) gucumukura
(to suffer without complaint) kwīyumānganya
(to take pains with) kwītōndera
En-En dictionary 
relief    (of need) ubukenuke
(to get ~ from pain) kwōroherwa
En-En dictionary