Because the dragonfruit cactus is a cactus / succulent, it can more readily tolerate periods of dryness than it can tolerate long periods with too much moisture. Bear this in mind when when planting dragon fruit and choosing a location and preparing the soil and/or planting area.
Trouble in the mouth is the indication of low vitamin B complex in the body. A burning sensation in the mouth and tongue is a common effect of B vitamin deficiency. Deficiency of B complex also results in a swollen tongue, and people with this deficiency find it hard to swallow.
1 Vitamin A deficiency. 2  Taking vitamin A by mouth is effective for preventing and treating symptoms of vitamin A deficiency. 3  Vitamin A deficiency can occur in people with protein deficiency, diabetes, over-active thyroid, fever, liver disease, cystic fibrosis, or an inherited disorder called abetalipoproteinemia.