Hot Water and Pressure to Reduce a Keloid?

If you have a developing keloid, there are many different ways to treat it.  I have never heard of hot water.  Some treatments include steroid injections, topical silicone sheeting, pressure dressings,. surgical excision, and radiation to name a few.

There are many ineffective and partially effective treatments for Keloids. There NO uniformly completely effective Keloid treatments.
If your scar is indeed a keloid, I would see a Dermatologist or a Plastic surgeon who may want to inject it with corticosteroids / possible radiate it and treat it with silicone sheeting and pressure.
Get PROFESSIONAL HELP.

Keloids should be treated early and aggressively.  Pressure treatment is recommended using specific protocols, however, hot water may elicit a histamine response that has not shown to modulate keloids. Surgery90210 Karamanoukian

If this is a developing keloid scar as you mentioned, then your best bet will be to see a plastic surgeon or dermatologist who can properly identify the nature of your scar and begin on a plan of action to reduce the keloid.
There are a few different, effective ways to treat keloids, including steroid injections, silicone or silastic sheets, excision, radiation to name a few.
Please seek the care of a specialist who can help you in this early phase.
Good Luck!
Dr. B.