The dark red body colour clearly indicates intense Heat and the redder colour and swelling on the sides shows that the Heat is in the Liver. Thus, this patient has suffered from Liver-Fire for a long time (we can deduce it is a long time from the dark-red colour) and the intense Fire has begun to injure Yin. We know this from the fact that the coating is rootless: this indicates the beginning of Yin deficiency and, since the tongue is dark-red and there is a coating, we can deduce that it is the Fire that is injuring Yin rather than deficient Yin giving rise to Empty Heat.