Collocations for shyness - noun

natural
extreme, paralysing/paralyzing
initial

be overcome with, have
He was suddenly overcome with shyness.

conceal (esp. BrE)
conquer, forget, get over, lose, overcome
She had to work very hard to overcome her shyness.
She completely forgot her shyness in her fascination with what he was saying.

cure

disappear