It is a perfectly normal reaction for the skin to itch after laser hair removal. Certain areas might be more sensitive than others e.g. the bikini line area or legs. In particular if you have also suffered from ingrown hairs it may be those areas which are particularly itchy.
It is extremely important you do not scratch the area as this may result in scarring. Instead, ensure to use a product to help calm the skin and promote healing. Sudocream has been particularly useful at this as it contains zinc. This is the more cost-effective solution. You can also combine this or instead use After Inked lotion which is used after procedures like tattoo removal where the skin can flareup. After Inked is a high-quality formulation which will ultimately promote rapid healing – just what you need after laser hair removal. You should find that the skin calms down within a week of the treatment. If however the itching persists consult with your laser practitioner or pharmacist.