Verbs

(v)unstuff, loosen upcause to become unblocked“The medicine unstuffed my nose in minutes!”
(v)relax, loosen upbecome less tense, less formal, or less restrained, and assume a friendlier manner“our new colleague relaxed when he saw that we were a friendly group”
(v)limber up, warm up, loosen upmake one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
(v)relax, loosen up, unbend, unwind, decompress, slow downbecome less tense, rest, or take one's ease“He relaxed in the hot tub”, “Let's all relax after a hard day's work”
(v)relax, unstrain, unlax, loosen up, unwind, make relaxedcause to feel relaxed“A hot bath always relaxes me”