Hi,
Welcome and thanks for posting your query to HCM.
It seems from your query that you got irritation by applying toothpaste over the pimple area known as Contact irritant dermatitis(CID). Tooth paste contains many a chemicals which can irritate our sensitive skin and on occlusion by bandage can make the situation worse.
The very first thing is to do is thoroughly clean the area with simple warm water or with
cold water without rubbing the area. Do cold compressions for multiple times a day. Do not apply anything which is oily or greasy or having irritant potential- so no self medications.
You can apply mild potency
steroid cream such as
hydrocortisone or
fluticasone mixed with antibiotic preparation which will help you out in both
pimples and CID. There will be formation of scab/ crust over the area, do not try to touch or pull the areas. If you feel more of burning and irritation then can take oral steroid with
medical advice so theaat it should not leave any nmarkthen can apply very thin layer of
calamine lotion.
In future also kindly discourage yourself from self medication as for face especially.
Hope this information will be helpful.
Dr Sanjay K Kanodia
MD ( Dermatology and STD/ Venereology)