How long before return

[LadyJ]

A Filipino mate of mines mother has a two year visit visa, she has just returned after 5 months, is there minimum time she needs to spend in the Phils before coming back to the UK? I suggested it might be six months but was not sure where I had heard/seen this or indeed if it was correct. Any help would be appreciated.

Scott

She can come back anytime as long she left/exit UK within 6 months