The views expressed by me are for educational purposes only and do not establish a doctor patient relationship.
This is Dr. D.J., experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
The description of rash suggests allergic reaction.
Poison ivy is unlikely if you did not have exposure to the plants.
But food allergy is still very likely --like some type of spices as thai food uses lot of spices.
At this point, you can try benadryl 50 mg and can repeat after 8 hours if needed.
This is helpful in most cases.
If not, then you need to call the local doctor via hotel concierge for injectable medications ( benadryl and steroid cocktail).
But I have been so many times to Thailand, have spent months in India, have been all over the developing world, Brazil, Turkey, Egypt, have lived outside of the US for 18 yrs., etc., and I eat *everything*, so this reaction is surprising!
yes surprising --but body sometimes causes delayed hypersensitivity.
This means you may not get any reaction initially, but repeated exposure can bring about the food allergy.
Insect bite is not likely since you do not see any bite marks.
Symptoms seems to be getting less bad, throat constriction is easing, warm feeling in face/head is now going away... but rash seems to be spreading. As long as it's only a rash, I'm not too worried... but I looked up these symptoms on internet, found it could be acute meningitis, etc., *that* got me worried!
Not at all since you do not have any fever, neck stiffness, projectile vomiting.
Do not worry --nothing serious.
Take benadryl if available.
Just curious: why is the rash so bad under the arms, but not as bad inside elbows, at wrists, around neck, at groin? Main area of rash is now under arms, spreading out a bit to inner bicep...
This is because the pressure on the skin and also heat can trigger the rash appearance under arms, groins, anal folds for example.
Then they spread gradually.
But the spread is halted by the benadryl usually.
I really appreciate your help... am aboutXXXXXfrom Chiang Mai (Thailand), it's late here, getting to hospital would be a huge hassle, but you've made me feel better. This is the first time I've used this service.
I don't think I have benadryl, but I will be sure to keep some handy in the future.
In most cases, these conditions can be treated at home with over the counter medications.