Trifolium repens act as prophylactic against mumps, feeling of congestion in salivary glands, pain and hardening, especially submaxillary; worse, lying down. 
 
Mouth filled with watery saliva, worse lying down.Taste of blood in mouth and throat. Sensation as if heart would stop, with great fear, better sitting up or moving about; worse, when alone, with cold sweat on face.

Use under medical supervision.