alleviate
al·le·vi·ate
/əˈliːviˌeıt/ verb , -ates, -at·ed, -at·ing [ + obj ]
: to reduce the pain or trouble of (something) : to make (something) less painful, difficult, or severe
The doctor tried to alleviate [=relieve] her symptoms/suffering.
finding ways to alleviate stress
The new tunnel should alleviate [=lessen, reduce] traffic on the bridge.
government programs that are intended to alleviate [=reduce] poverty
al·le·vi·a·tion /əˌliːviˈeıʃən/ noun [ noncount ]
the alleviation of suffering/poverty