Bryonia Alba is not Jessica Alba's sister. As a matter of fact Bryonia Alba could be anyone sister, brother or friend. Haha...gotcha! ;-) 
Bryonia Alba is actually a homeopathic remedy. If you are irritable when you're sick, vehement, angry and everything seems to put you out of humour, you are most likely to need this remedy for your illness. Let us check further on the overall characteristics of this wonderful remedy.
Generally, there will be aching in every muscle and the pain feels like stitching, tearing; worse from movement (all pain will be worsen by any motion) and feels better when resting. The mucous membranes of the entire body are all dry. The lips and tongue dry, parched, cracked; stools large, hard, dry as if burnt; urine dark and scanty; cough dry, hard, racking, with scanty expectoration; bursting and splitting headache as if hit by a hammer from within, worse on motion even when stooping or opening eyes, throat dry with excessive thirst, stomach sensitive to touch.  This remedy is best for those having gout or rheumatic pains, constipated, cough and headache if the symptoms above fit the symptoms of the person. 
The main characteristics; aggravation from any motion and amelioration (relief) from absolute rest. That's Bryonia Alba!