I tot u r vry good in finding cheap alternative in taobao

Go find then..why ask?

monthly or daily?

i just go optic shop and buy, been using Oasys daily contacts for 12 yrs, so far got no issues

mayb your eyes too dry, need buy water drops after inserting contact lens

no idea why shopee doesnt sell

won't comment about yr "stinging" problem; u should consult an ophthalmologist face-to-face for that.

generally, the higher the water content of the lenses, the more air gets to yr eye resulting in longer and more comfortable wear times. and such lenses command a higher price.

if u have astigmatism, lenses which don't conform to the shape of yr eye may not fit properly, and can slip. Speaking only for myself, Bausch & Lomb fit me well while Alcon's Air Optix and CooperVision are even better with a tighter fit (but CooperVision is more comfy to me). again, consulting a good ophthalmologist is worth it.

don't be afraid of google. google is your friend.

as for yr 2nd question, try ASKING the shop.