How can i remove an ingrown toenail at home as painlessly as possible?

You can try : Soaking in hot water to make the nail soft then cut the edge on a small slant. However, most often more of the nail needs to be removed and this could only be done once anesthesized. I would advise you to see a podiatrist.

Removal...: ...Is the only permanent solution. Just the painful border can be removed, or the entire nail if necessary. After removal you can let the border grow out again, or your doctor can use a chemical to stop the nail from regrowing. If you're concerned, don't perform bathroom surgery on yourself. That can lead to an infected ingrown toenail, which could require antibiotics.

Nail care...: Ingrown toenails can be remedied through soaking your foot in warm water, removal of embedded debris from the nail borders, and applying an antibiotic ointment to temporarily soften the corners. One should always try to cut the nails strait across to avoid leaving an embedded nail spicule. If pain or redness continues get it looked at by a professional.