I'm not sure how many days in one of Neptune years but one of Neptune's days is 16 hours and 7 minutes long. And one year is 165 earth years so 365 x 165 = 60225 earth d â¦ ays in one Neptune year. 4 people found this useful. Answered.
Most rashes caused by poison ivy, poison oak, or poison sumac are mild and last from five to 12 days. In severe cases, the rash can last for 30 days or longer. Immunotherapy is not available for allergies to poison ivy, poison oak, and poison sumac.
Well, the average time poison ivy takes to go away is from 5-12 days. But, it is basically defined by the severity of the problem. The rash may also take 30 days or longer to last completely. Here are few important preventive measures that you may take to prevent allergic reaction due to poison ivy.