Using those things [Urine - Ammonia - Vinegar] should be after you got that bite directly. No point of using those now as well as what you have now is nothing but an open wound. Use any chemical that got Iodine in it to help your skin heal faster, if not then seeing a doctor is a must.

Tried kissing that before, does not work Rayyz :)

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Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)