Which treatment if you have an ingrown toenails which are nasty and very painful is the very best?

See chiropodist: Chiropodists or podiatrists are well trained and versed in the care of ingrown toe nails. Some just require soaking +- antibiotics and professional trimming of the nail. If very bad with granulation tissue (chronic sore) or unresponsive to conservative therapy may require surgery.

Ingrown nail : By nasty i will assume they have been infected. The very best way is to have the border or edge of the nail removed and that area of the growth center destroyed either chemically or by co2 laser. A podiatrist will help you with this. Good luck !

Removal, antibiotics: If your ingrown nail is infected, you'll likely need antibiotics, and possibly a nail procedure. Just the painful border can be removed, or the entire nail if necessary (you're numbed up for this, don't worry!). While waiting to see your doctor, soak the toe 10 min/day in luke warm water and epsom salts, use a small amount of topical antibiotic ointment, and cover with a bandaid.

Nail care: The ingrown part of the nail is not always visible. Try soaking your foot in warm water, removal of embedded debris from the nail borders, and applying an antibiotic ointment to temporarily soften the corners. If you have redness and drainage, get it looked at by a professional, as you may need to have the ingrown nail border removed.