I heard gum paint is helpful on swollen gums. how does that work? do you recommend it? (its brand name astrigum)

NOPE!: According to the company's own description, it contains an astringent to control the bleeding. Would you buy a special "blood bandage" or special gauze for a bleeding nose caused by high blood pressure? You need to see a General Dentist (or a Periodontist) to evaluate your periodontal (gum) condition and render appropriate treatment to remove cause and prevent further bleeding.

Worse: Not good. Inflammation usually means infection. Need to treat the infection to make the gums healthy. "Paint" doesn't treat infection, just reduces some of the fluid levels in the tissues. Gum disease will worsen with time, even if you disguise some of it's effects. Please don't waste your time and money. Call your Dentist for professional help.