Pain is never an easy element to fight and one has to most of all not let it dry, as it will make any further steps very difficult to execute. Dry pain of whatever nature is next to impossible to remove with home remedies, that is why you need to use wet towels to prevent it from drying if you’re off to the shop to get some sort of wipes or paint softeners. However one has to be careful with any pain softeners to be used on carpets as they may prove to be damaging on the carpet and by leaving a lighter spot on it then it was there originally. So do a test patch first of all on an area that is not greatly visible, and second of all do not rub the spot with a hard brush of any kind as this may and most likely will damage the carpet pile and leave a horribly looking patch on your carpet that does not match rest of it at all.
If you are however dealing with an emulsion pain, then you have an easier task on your hand. But the first action is as usual, meaning not let it dry. Then simply use wet cloth and hoover to extract any paint and be patient.
In many instances using white spirit may be very effective in removing pain from the carpet, however one really has to be careful if there is no discoloration from using it. Because some of the carpets can respond really badly to this sort of agitation, and make sure you don’t rub in to the carpet as sometimes with wool carpet you may get a change in texture or just fluffing of the carpet.