I'm a Myanmar passport holder already obtained a HK visa.

Dear Sir/Mdm
I intend to visit Macau from HK by ferry and return to HK after two days at Macau then fly out to Bangkok. Do I need a HK entry permit for re-entry from Macau? My HK entry permit is valid for 7 days and plan to stay at HK only 2 days before leaving to Macau. Thanks everyone with the advices.
ZMA