Home remedies · Mouth, teeth, eyes & feet
No home remedy here replaces treatment, and none is talked down. What has done good for generations does good — even if no one ever measured it. Where something is well studied, it says so. Where it is only experience, it says that too.
Something cool on the closed lids: a damp cloth from the fridge, a cooled tea bag, the back of a cool spoon. Ten minutes, best in the morning when the lid is puffy. Plus sleeping higher and salting less in the evening.
Cold draws the small vessels together and lets stored fluid drain. That is why it works on the swelling — for one to two hours. That is the whole mechanism, and it is not nothing: a puffy lid casts a shadow, and part of what is seen as a ring is that shadow.
On the colour, cooling changes almost nothing, and that belongs said. Dark circles usually have three sources: the skin under the eye is the thinnest in the body, with vessels shining through; the groove between lid and cheek casts a shadow; and in some there is more pigment there. All three are structure, not a state — no compress, no cucumber and no cream changes them. What does change something: enough sleep, enough to drink, less salt, no rubbing.
If a swelling is new, one-sided, painful or comes with a vision problem, if it grows over days, or if lids and face swell noticeably in the morning — that should be looked at and is something other than a circle.
To the doctor or dentist: facial swelling with fever, toothache with trouble opening the mouth, a knocked-out tooth — that is an emergency with a short window. For the eye: sudden loss of vision, severe pain, flashes of light. Sore places in the mouth lasting beyond three weeks.