Meet the Other Phone. Only the apps you allow.

Meet the Other Phone.
Only the apps you allow.

Buy now

Please or to access all these features

Weight loss injections/treatments

Discuss weight-loss injections and treatments, including personal experiences. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any treatments.

Delayed allergic reaction/hives on MJ

6 replies

Curlyhorse · 14/08/2025 18:26

I'm on week 9 of MJ, currently on 5mg and has been going well with very minimal side effects. However past 2 weeks I've had itchy red spots/hives at the back of my neck. This week I've had a 3-4 spots pop up in random places on my body. Not at injection site.

I've not used any new cosmetics, soap etc so can only be linked to MJ. But would an allergic reaction not happen after my first dose? Would it take 8-9 weeks?

Delayed allergic reaction/hives on MJ
Delayed allergic reaction/hives on MJ
OP posts:
Kittkats · 16/08/2025 11:10

You can develop an allergy at anytime. I developed a food allergy in my 30s to something I’d eaten without issue for years. MJ is a possibility (especially if it eases as appetite suppression does) but it could literally be anything!
Heat rash is a possibility too.

Curlyhorse · 16/08/2025 23:02

Thanks 😊 it's hard to know what is causing it but seems it could be MJ?!

OP posts:
Kittkats · 16/08/2025 23:05

Could be. Is it worse when supression is highest (ie when levels of MJ are highest in your system)?

Curlyhorse · 16/08/2025 23:11

Kittkats · 16/08/2025 23:05

Could be. Is it worse when supression is highest (ie when levels of MJ are highest in your system)?

No actually. The ones on my neck have been constantly itchy and I've had others on my arms and legs came and go randomly so not at specific times after injection.

OP posts:
Kittkats · 16/08/2025 23:13

I’d expect it to be worse when levels are highest, a bit like how hayfever is worst when pollen count is high?

Curlyhorse · 16/08/2025 23:16

Kittkats · 16/08/2025 23:13

I’d expect it to be worse when levels are highest, a bit like how hayfever is worst when pollen count is high?

Yes that would make sense. It's puzzling! I'm supposed to inject on Monday and I'm a bit scared to.

OP posts:
New posts on this thread. Refresh page