Thanks for your query.
You have got chemical burn
on upper lip, as such hair removing creams are chemically rich to damage your skin.The chemicals can interact with other things you have used on your body- like soap or lotion, or with something you had on your hands at the time. Possibility of Allergic reaction
can not be ruled out.
Don't put anything else on the skin until it resolves. You may use Vitamin E
Oil to apply and get soothing effect. You can use a skin cream containing clotrimazole
, it would avoid any infection to harm you further.
For further evolution and treatment please visit skin specialist.
Hope it helps.