I have had at lest 3 episodes since my early 20s, when I had a biopsy done at National Skin Centre.

Cold press may help relieve the inflamation such as ice pack … for 5 to 10 minutes!

— #1 precaution: scratch .. can damage the skin

• shorten all fingernails and /file/ any sharp edges
• use palm, fingertip, knuckle etc to rub an itch
• any itch not related to the condition can be scratched as usual

— On 14 Sep 2024, Dr Sonia of RMG Toa Payoh examined my skin condition and told me

• Very likely an allergy
• Even a single insect bite (in this case near the neck) can cause this inflation over a large area. It can spread to many parts … including wrists as seen today.
• stress could have exacerbated the condition. I told her stress could be the primary trigger in this episode.
• heat can exacerbate the condition
• can last 2 to 3 weeks

The 13 Sep 2024 doctor said insect contact without bite can also trigger this condition.