It is reasonable to believe that Luke gave Paul medical advice and rendered medical services to him and to others in his missionary group. Why would Luke need to do that? Because even Paul got sick while traveling.
(‏ کول ۴ :‏ ۱۴ ؛‏ اعما ۱۶ :‏ ۱۰ -‏ ۱۲ ؛‏ ۲۰ :‏ ۵ ،‏ ۶‏ )‏ قاعدتاً اگر پولُس و دیگر اعضای گروه میسیونری‌شان بیمار می‌شدند ،‏ لوقا به آنان یاری می‌رساند .‏