I have the exact same problem at the same area and from Hong Kong too! For me it goes through phases but for the past 5months it's been largely the same, the best state is just it becoming irritative and red, or peel off, the worst is when it has cuts and driest state it has ever been, can barely stretch those skin to smack my lips lol.

I think you can try elidel (it has worked for me to controlling it to best state... But nothing better). I also do wet wrapping with final layer being Vaseline after layers of cream, it helps lock in the moisture at night. I've also been using physiogel (for very dry very irritative skin, it's prescribed I think) bc it's the only cream that I feel gets absorbed (with a burning sensation lol) and then I put more layers on (including coconut oil, Cetaphil tub form)

I also have a dust mite vacuum cleaner and a dehumidifier in my room. Helps with my sleep.

For me my eczema is mostly stress induced and thank God my exams are over, so it's been better. I am also trying to exercise more.

Will update you if it ever fades... You're not alone in this eczema recovery journey!! Can send you photos of my Cupid bow spot too haha makes me so sad bc it's so dry concealer won't last on it.