Usage patterns
〈物〉恐怖症になるto develop a phobia of〈thing〉
She developed a phobia of dogs after an accident when she was little.
〈物〉恐怖症を克服するto overcome a phobia of〈thing〉
He gradually overcame his fear of heights.
〈物〉恐怖症にかかるto suffer from a phobia of〈thing〉
He suffers from a fear of pointed objects and can't even stand looking at them.