At 10 weeks PP the scar is still actively healing, so some firmness and a pinkish raised feeling is pretty normal at this stage, and your gynae likely would have flagged it if she was worried. That said, since you already have the anti-keloid gel, it is worth asking your gynae or PD whether to start using it now, just so you are not waiting too long if it does need attention. I will be honest, my own C-section scar felt exactly like what you described and it eventually flattened out over several months, but I know not everyone's experience is the same. If you are unsure or it starts looking more raised or spreading wider, just call your gynae's clinic for a quick check rather than waiting for the next scheduled appointment.