Hi..
Thanks for the query..
As per your complain it seems that you have got an
allergic reaction to either any ingredient of the pizza which can be commonly cheese or any sauce or different topping than regular ones or can be due to any ingredient of the cookie dough..
All the symptoms you have explained are clearly indicative of allergic reaction and you need an anti-allergic treatment for faster relief from symptoms..
You can take
Cetrizine which is an anti-allergic medication.
You can take anti-inflammatory medicine like
Ibuprofen for reducing inflammation and it also has a painkiller action..
For diarrhoea you can take
FURAZOLIDONE [lomofen] containing tablets.
Drink plenty of to wean off the effect of the allergen at a faster rate..
Apply calamine lotion over the itchy areas for a soothing effect..
In case if still the symptoms are not controlled you should consult a physician and get evaluated and a
blood test can be done to rule out the exact allergen and the best way to prevent recurrent attack is by preventing exposure to the allergen..
Hope this helps..
Regards..