For the symptoms posted I think Bryonia is a more likely suitable opening remedy than Spig, but perhaps the person posting has more insight into the case than is posted.

REf para 195 Organon, the patient will need follow-up treatment, so it would be best to find a good local homoeopath to take on the case, since this appears to be a flare up of latent psora, which could re-occur if not treated beyond the acute.