Idiopathic angioedema is a skin reaction that causes swelling in tissues under the skin. The cause is unknown, but stress, infections, and exposure to heat or allergens may trigger it. Various ...

Local injections of botulinum toxin type A have been used to treat essential head tremor but have not been extensively studied in randomized trials. In a multicenter, double-blind, randomized trial, ...

Botox is a brand-name injectable botulinum toxin that can be prescribed off-label for essential tremor. With off-label use, doctors prescribe a drug for a different condition than what it’s approved ...