The best flea treatment for humans is to simply practice good hygiene if you are concerned or believe you have been infested with fleas. As stated numerous times in other locations on this website, the occurrence of fleas on humans is very rare nowadays. It only occurs in some of the most exceptional circumstances of poverty or homelessness.
With respect to treating flea bites and skin irritation, there are numerous options for you to choose from. Your first and most immediate objective should be to reduce and alleviate the painful itching by taking an over-the-counter oral antihistamine like Benadryl and Claritin or using a topical lotion like Caladryl.
HealthlinkBC, a Canadian government website, states:
Antihistamines that are taken by mouth (oral) work better than those that are applied directly to the skin (topical) because a pill or capsule contains a specific dose of medicine. The dose in a cream or ointment depends on how much is applied at one time and is harder to control. Too much antihistamine absorbed through the skin can be toxic, especially to children. Don’t give any antihistamines to your child unless you’ve checked with the doctor first. The use of cream or ointment antihistamines is not reliable and not recommended.
Because hot water can induce itching many health professionals suggest that individuals suffering from flea bites use cool or lukewarm water and antiseptic soap. Another common tip seen circulated on the internet is the use of tea tree oil applied to bites along with more traditional recommendations of oatmeal baths (e.g. Aveeno).
Feel free to read more information about flea repellent for humans so that you can avoid having to use these flea treatment options.