Watch them from a distance, as the fuzzy, worm-like insects may leave you with a skin rash. You can get a caterpillar rash just by touching the insect. The hair of the insect can pierce the skin ...

Browntail moth caterpillars (Euproctis chrysorrhoea) have tiny barbed hairs containing toxins. These poisonous hairs cause skin rashes when touched and may cause breathing problems if inhaled.