delayed reaction to a wasp sting

I was stung by a wasp 4 days ago now, and for 2 days my leg where i was stung was hot, and pretty much red. I applied ice and anti itch cream. it seemed to help. Now, 2 days ago, while driving my car,  my left toes and foot started to swell. I have been putting ice on it, and when I sleep and keep it elevated it seems to be better,this is the same leg that I was stung on. Could this be a delayed reaction to the wasp sting.?? I dont recall ever  being stung by a wasp and i am 49 years old. Thank you.

[Bhupinder Kaur, MD]

Hello,

A bee or wasp sting can cause a skin reaction with redness, swelling, itching, and pain. This is very similar to the appearance of skin that is inflamed by a bacterial infection - a condition sometimes referred to as cellulites.

You can take over the counter antihistaminic like benadryl or Claritin.It will help in relieving the itching. If there is any pain involved, then pls take over the counter pain reliever like Ibuprofen(advil).You can also apply a mild hydrocortisone cream like dermacort on the site of the sting.Severe cases may need oral steroids.Also check your tetanus booster dose.If it is more than 10 years since the last tetanus booster,then pls get a tetanus toxoid shot.

Pls look out for infection also. Infection following a sting usually develops 48 to 72 hours after the sting. Symptoms of infection include fever, any reddish streaking traveling up an arm or leg towards the heart, increasing skin warmth, or increasing skin tenderness. Treatment is by antibiotics.

But if you are having skin itching, hives, or puffiness of the eyes, nose, lips, tongue and throat, breathing difficulties and vomitings,then pls consult a physician as soon as possible as it can be due to anaphylaxis.

Hope it helps.If you have any additional queries,then pls post us.
Take care and regards.